Non-Royal Chess
In the history of chess variants, there have been several that involve the King being "non-Royal" meaning that it can be left in check and captured.
There is one I've seen called "Take All" in which the game ends only when 1 side has all its pieces captured, including King. But this has a fatal flaw: to use one example, if White has 2 Queens remaining and Black has 1 Rook remaining, the Rook escapes all attempts at capture. The game may never end.
But there is a way to turn "Take All" into a viable game. Simply limit the length of the game to N plies per player. If one side loses all pieces before s/he plays N plies, then s/he loses by a score of (sum of material captured by winner) to (sum of material captured by loser). And if neither side loses by that method, then after N plies per player have been played, the exact same scoring is used to determine the winner. And if the score should be tied, then additional plies are played ("overtime") until after a Black move, one side or the other has a higher score, up to a certain limit N+M moves whereupon if the score is still equal, the game is a draw.
As you might imagine, there would be very few draws. But some games would be declared drawn even after just N moves, such as if White had only a Bishop remaining and Black had only a Knight. An obvious draw if the Bishop cannot be forced into "tesuji".
So I decided to create this as a new chess variant, which I am calling Norochess. "Noro" is a short form for Non-royal. The value I have chosen for N plies per player is 48. And the value I have chosen for M is 12, so that a game cannot last more than 60 moves per player.
One further refinement I added: since the King is non-royal, there is no point to having castling. Therefore castling does not exist in Norochess. This encourages the King to play just like all other pieces, even advancing into the center of the board. It would also mean there could be "Norchess960" without worrying about complicated castling rules.
To formalize the rules, it is stipulated that
A game of Norochess ends when either:
(1) one side has captured all the other sides pieces, or
(2) one side has pieces remaining but all moves are blocked, or
(3) each side has made 48 to 60 moves and one side has a higher score, or
(4) each side has made 60 moves and neither side has a higher score (game drawn).
Points are awarded for a capture as follows:
- Queen capture scores 9 points
- Rook capture scores 5 points
- Bishop capture scores 3 points
- Knight capture scores 3 points
- King capture scores 2 points
- Pawn capture scores 1 point.
Note that if a Pawn is promoted to a piece (such as Queen) and then subsequently captured, the points awarded are for the PROMOTED piece value. This makes Pawn promotion a double-edged sword.
I did think about scoring games based on how many points are remaining on the board at the end of the 48 plies per player. But this would not make Pawn promotion a double-edged sword, because whether you lose a Pawn or you lose a promoted Pawn (Queen), it really just counts as losing a Pawn.
The White advantage of first move in Chess is possibily nullified in Norochess, because Black can capture material on his last move with impunity whereas White cannot. It may be that Black actually has a slim overall advantage.
Note that because games of Norochess end in actual scores (instead of just 1-0 or 0-1 or 1/2-1/2) then tournaments can have tiebreaks based on score differentials. So if two players tie for first because of 4 wins and a draw each in a 5-round tournament, the first tiebreak could be each player's cumulative scores minus each player's cumulative scores allowed. This would add significance to each and every single move in all games. Even if you are winning 35-20 in the late stages of a game, it behooves you to keep playing for more points.
And that addresses a grievance I've long held: chess doesn't account for someone playing a strong game against a much stronger player and eventually losing in say 100 moves. You don't get any bonus points for playing such a good game. It's just 0 points, and that doesn't seem right for a game that prides itself as one of the best games in history.
By the way, I am definitely NOT expecting Norochess to rival Chess as the greatest game in history. In fact Norochess is just a side project of mine and will by this summer be released as an Android / iOS app through my development company.
Finally, here is one of the earliest recorded games of Norochess played under the final rules, with two young chess players (who wish to remain anonymous) trying it out. You cannot play these moves in any chess program that reads pgn format, because of the King being left in check and captured. So to enjoy this at all, you have to actually set up pieces and play the moves. I provide it here for anyone that has the curiosity and the time to play it out:
1.d2-d4 e7-e6
2.c2-c4 f7-f5
3.Ng1-f3 Bf8-e7
4.g2-g3 d7-d5
5.Qd1-c2 Nb8-c6
6.a2-a3 g7-g5
7.Bf1-g2 g5-g4
8.Nf3-e5 Nc6xd4
9.Qc2-d3 d5xc4
10.Qd3xc4 Qd8-d6
11.Bc1-f4 b7-b5
12.Qc4-c3 b5-b4
13.a3xb4 Nd4-b5
14.Qc3-c4 Qd6xb4
15.Qc4xb4 Be7xb4
16.Bg2xa8 Nb5-d4
17.Ra1xa7 Nd4-b5
18.Ra7-a4 c7-c5
19.Ba8-c6 Nb5-c7
20.Ne5-c4 Ke8-d7
21.Bc6xd7 Bc8xd7
22.Ra4-a7 Bd7-c6
23.Rh1-g1 Nc7-d5
24.Bf4-e5 Ng8-f6
Game is half-over, score is 19-15 in White's favor.
25.Ra7-f7 Bc6-b5
26.Nc4-d6 Bb5-a6
27.Be5xf6 Rh8-a8
28.e2-e4 f5xe4
29.Nd6xe4 Ba6-d3
Although White is ahead, Black has very active play.
30.Nb1-a3 Bd3xe4
31.Ke1-e2 Be4-g6
32.Rf7-b7 Bb4xa3
33.b2xa3 Nd5xf6
Black has now made a game of it. Score is 26-25 for White.
34.Rb7-b6 Bg6-f5
35.Rg1-a1 h7-h6
36.Rb6-c6 Nf6-e4
37.a3-a4 Ne4-c3
A critical juncture of the game. Everything rides on White's reply here.
38.Ke2-e3
The only good move that can save the game for White.
38. ... Ra8xa4?
Watching the game, I thought taking with the Knight maintaining the tension was better.
39.Ra1xa4 Nc3xa4
40.Ke3-f4 h6-h5
41.Kf4xf5 e6xf5
Now it is clear that White should win.
42.Rc6-f6 f5-f4
43.Rf6xf4 Na4-b2
44.Rf4-f5 Nb2-d1
45.Rf5xh5 c5-c4
46.Rh5-c5 Nd1-c3
47.Rc5xc4 Nc3-d5
48.Rc4xg4 Nd5-c3 White wins 38 - 33.
In the history of chess variants, there have been several that involve the King being "non-Royal" meaning that it can be left in check and captured.
There is one I've seen called "Take All" in which the game ends only when 1 side has all its pieces captured, including King. But this has a fatal flaw: to use one example, if White has 2 Queens remaining and Black has 1 Rook remaining, the Rook escapes all attempts at capture. The game may never end.
But there is a way to turn "Take All" into a viable game. Simply limit the length of the game to N plies per player. If one side loses all pieces before s/he plays N plies, then s/he loses by a score of (sum of material captured by winner) to (sum of material captured by loser). And if neither side loses by that method, then after N plies per player have been played, the exact same scoring is used to determine the winner. And if the score should be tied, then additional plies are played ("overtime") until after a Black move, one side or the other has a higher score, up to a certain limit N+M moves whereupon if the score is still equal, the game is a draw.
As you might imagine, there would be very few draws. But some games would be declared drawn even after just N moves, such as if White had only a Bishop remaining and Black had only a Knight. An obvious draw if the Bishop cannot be forced into "tesuji".
So I decided to create this as a new chess variant, which I am calling Norochess. "Noro" is a short form for Non-royal. The value I have chosen for N plies per player is 48. And the value I have chosen for M is 12, so that a game cannot last more than 60 moves per player.
One further refinement I added: since the King is non-royal, there is no point to having castling. Therefore castling does not exist in Norochess. This encourages the King to play just like all other pieces, even advancing into the center of the board. It would also mean there could be "Norchess960" without worrying about complicated castling rules.
To formalize the rules, it is stipulated that
A game of Norochess ends when either:
(1) one side has captured all the other sides pieces, or
(2) one side has pieces remaining but all moves are blocked, or
(3) each side has made 48 to 60 moves and one side has a higher score, or
(4) each side has made 60 moves and neither side has a higher score (game drawn).
Points are awarded for a capture as follows:
- Queen capture scores 9 points
- Rook capture scores 5 points
- Bishop capture scores 3 points
- Knight capture scores 3 points
- King capture scores 2 points
- Pawn capture scores 1 point.
Note that if a Pawn is promoted to a piece (such as Queen) and then subsequently captured, the points awarded are for the PROMOTED piece value. This makes Pawn promotion a double-edged sword.
I did think about scoring games based on how many points are remaining on the board at the end of the 48 plies per player. But this would not make Pawn promotion a double-edged sword, because whether you lose a Pawn or you lose a promoted Pawn (Queen), it really just counts as losing a Pawn.
The White advantage of first move in Chess is possibily nullified in Norochess, because Black can capture material on his last move with impunity whereas White cannot. It may be that Black actually has a slim overall advantage.
Note that because games of Norochess end in actual scores (instead of just 1-0 or 0-1 or 1/2-1/2) then tournaments can have tiebreaks based on score differentials. So if two players tie for first because of 4 wins and a draw each in a 5-round tournament, the first tiebreak could be each player's cumulative scores minus each player's cumulative scores allowed. This would add significance to each and every single move in all games. Even if you are winning 35-20 in the late stages of a game, it behooves you to keep playing for more points.
And that addresses a grievance I've long held: chess doesn't account for someone playing a strong game against a much stronger player and eventually losing in say 100 moves. You don't get any bonus points for playing such a good game. It's just 0 points, and that doesn't seem right for a game that prides itself as one of the best games in history.
By the way, I am definitely NOT expecting Norochess to rival Chess as the greatest game in history. In fact Norochess is just a side project of mine and will by this summer be released as an Android / iOS app through my development company.
Finally, here is one of the earliest recorded games of Norochess played under the final rules, with two young chess players (who wish to remain anonymous) trying it out. You cannot play these moves in any chess program that reads pgn format, because of the King being left in check and captured. So to enjoy this at all, you have to actually set up pieces and play the moves. I provide it here for anyone that has the curiosity and the time to play it out:
1.d2-d4 e7-e6
2.c2-c4 f7-f5
3.Ng1-f3 Bf8-e7
4.g2-g3 d7-d5
5.Qd1-c2 Nb8-c6
6.a2-a3 g7-g5
7.Bf1-g2 g5-g4
8.Nf3-e5 Nc6xd4
9.Qc2-d3 d5xc4
10.Qd3xc4 Qd8-d6
11.Bc1-f4 b7-b5
12.Qc4-c3 b5-b4
13.a3xb4 Nd4-b5
14.Qc3-c4 Qd6xb4
15.Qc4xb4 Be7xb4
16.Bg2xa8 Nb5-d4
17.Ra1xa7 Nd4-b5
18.Ra7-a4 c7-c5
19.Ba8-c6 Nb5-c7
20.Ne5-c4 Ke8-d7
21.Bc6xd7 Bc8xd7
22.Ra4-a7 Bd7-c6
23.Rh1-g1 Nc7-d5
24.Bf4-e5 Ng8-f6
Game is half-over, score is 19-15 in White's favor.
25.Ra7-f7 Bc6-b5
26.Nc4-d6 Bb5-a6
27.Be5xf6 Rh8-a8
28.e2-e4 f5xe4
29.Nd6xe4 Ba6-d3
Although White is ahead, Black has very active play.
30.Nb1-a3 Bd3xe4
31.Ke1-e2 Be4-g6
32.Rf7-b7 Bb4xa3
33.b2xa3 Nd5xf6
Black has now made a game of it. Score is 26-25 for White.
34.Rb7-b6 Bg6-f5
35.Rg1-a1 h7-h6
36.Rb6-c6 Nf6-e4
37.a3-a4 Ne4-c3
A critical juncture of the game. Everything rides on White's reply here.
38.Ke2-e3
The only good move that can save the game for White.
38. ... Ra8xa4?
Watching the game, I thought taking with the Knight maintaining the tension was better.
39.Ra1xa4 Nc3xa4
40.Ke3-f4 h6-h5
41.Kf4xf5 e6xf5
Now it is clear that White should win.
42.Rc6-f6 f5-f4
43.Rf6xf4 Na4-b2
44.Rf4-f5 Nb2-d1
45.Rf5xh5 c5-c4
46.Rh5-c5 Nd1-c3
47.Rc5xc4 Nc3-d5
48.Rc4xg4 Nd5-c3 White wins 38 - 33.
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