GM Jan Timman RIP
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Solution to the Rinck problem in post 68 and 69 above.
1.Kb8, Bd7
2.Kc7, Be8
3.Kd8, Bf7 The only square. Note that the bishop will be captured by a discovered knight check or by the white bishop itself if it goes to any other square.
4.Ke7, Bg8
5.Kf8, Bh7
6.Kg7 Interesting coordination between the white pieces in chasing down the black bishop. The bishop and knight did not move but were poised to capture the black bishop if it moved within range. That is the end of the problem.
But wait. There is more thinking to be done (if you want) I discovered this in checking the final position (next post, next diagram)
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What if Black now plays 6....f4?? (that's what comes from checking all legal moves) Of course, 7.Kxh7, f3 and now if 8.Nd4+, Kf2 White could try to win the pawn by 8.Be4, but Ke3 a devastating king fork! So how do you win the pawn? A good exercise. Give it a try.
Last edited by Hans Jung; Thursday, 18th June, 2026, 01:38 PM.
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Answer to post 79 above, where is the best move for the knight? Definitely head to the blockade square f1.
For example: 8.Ng3+, Kg2 9.Nf1, Kh3 10.Kg6, Kg4 11.Kf6, Kf4 12.Ke6, f2 13.Kd5, Kf3 14.Ke5, Kg2 15.Ke4, Kg1 16.Ke3, Kg2 17.Ke2, Kg1 18.Ne3, Kh2 and capture the pawn and then proceed with bishop and knight checkmate.Last edited by Hans Jung; Thursday, 18th June, 2026, 01:55 PM.
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Answer to post 81. Black plays 1,,,,Ne3 Now, not 2.d6?, Bb8 and Black will round up the D-pawn.
However 2.Rc5 is the only move to win. 2...Bb6 3.Ba5 pin followed by pin. 3....Nxd5 incredible!! and all because of pins.
4.Kh1!!! and no matter how Black swings it, White will end up a rook.
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Solution to study in post 83. 1.Be3+, Kb7 The best square for the king as it allows the rook to use the A-file to stop the advanced E pawn.
2.e7, Rxa3
3.Ba7!! Interference
3....Ra1
4.Kf4, Rf1+
5.Bf2!, Rxf2+
6.Ke3, Rf1
7.Ke2 ending with Saavedra's king move.
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Now we are going to introduce the studies of knight and passed pawn vs rook. Study 13.
Sergey Kaminer, Shakhmaty, 1925 White wins. Kaminer composed this when he was 16. He was a good friend of Botvinnik, in Botvinnik's younger years. In 1937 Kaminer gave his notes to Botvinnik, thus his 99 studies are preserved. Kaminer was murdered in the Great Purge the follwing year.
Last edited by Hans Jung; Thursday, 18th June, 2026, 02:41 PM.
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Solution to post 85. 1.b7, Rf8 naturally but now the great pyrotechnics of the knight aided by the king begin.
2.Nc6, Kf4
3.g4!! A mind boggling move enticing the king to g4.
3....Kxg4
4.Kg7, Re8 forced.
5.Kf7, Rh8
6.Ke7, Rg8
7.Nd8, Rg7+
8.Nf7, Rg8
9.Nh6+ and wins the rook.
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According to Timman the next study composer Mark Liburkin was regarded as a genius. In Timmans own words: 'His studies are characterized by fantastical elements, twists and turns that are not easy to conceive. The present study is one of his simpler compositions. In the original version, Liburkin had also built in an attractive bishop sacrifice, but that turned out to be incorrect."
Mark Liburkin, Shakhmaty v SSSR 1939, White to play and win. Corrected by: Jan van Reek.
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