Monday 11 December 2017

Study 134

Árpád Rusz
Dvoretsky MT
2017
Commendation

White wins

1. a7 Kf1! Black avoids moving to f3 because that square is on the long diagonal. 2. Re7! Logical try: 2. Re8? c4 3. Rb8 Rb3! 4. Rxb3 cxb3 5. Kb8 b2 6. a8=Q No check! b1=Q+ = 2... Kf2 Now white has to lose a tempo.


cyclic zugzwang - WTM

3. Rb7 Ra5 4. Rc7! 4. Kb8? Ke3 5. Rc7 Kd4 = 4... Rb5 4... Ke3 5. Kb7 Kd4 6. Rc6! (6. Kb6? Ra1 7. Rxc5 Rxa7! =) 6... Rxa7+ 7. Kxa7 +- 5. Re7 White has transferred the move to black.


cyclic zugzwang - BTM

5... Kf3 Now it was unavoidable for the black king to step on the long diagonal. 5... Kf1 6. Rb7 Ra5 7. Rb2/Kb8 +- 6. Re8! Now that the black king was lured to f3 the main plan works! 6... c4 6... Kf2 7. Rb8 Ra5 8. Kb7 Ke3 9. Rc8 Kd3!? 10. Rxc5! +- (10. Kb6? Rxa7 11. Kxa7 c4 =) 7. Rb8 Rb3 8. Rxb3+ cxb3 9. Kb8 b2 10. a8=Q+ +- The queen has promoted with check!

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