Bron-110 MT
2019
3rd/4th Honourable Mention
White wins
1. Bxa5+ 1. e8=Q? Qb3+! (1... Kd1+? 2. Be2+! +-) 2. Kxa1 Qd1+ 3. Kb2 (3. Ka2?? Kc1+ -+) 3... Qc2+ 4. Ka1 Qd1+! perpetual check 1... Kd1+ 1... Ke3+ 2. Ka3 Nc2+ 3. Ka4 +- 2. Bd2! unguarded guard sacrifice 2. Kxa1?? is wrong because the a8 rook doesn't protect the a3 square. 2... Qa3+ -+ 2... Nd3+! 2... Rxd2+ 3. Kxa1 After the bishop sacrifice, the a3 square is protected. 3... Qa3+ 4. Rxa3 +- 3. Bxd3 Rxd2+! 3... Rxf6 4. e8=Q +-
Thematic try:
4. Kxa1? Qxd3! mutual zugzwang. Paradoxically, it will be bad for white that the pawn is going to be promoted! 5. e8=Q
5. Ra2 Rxa2+ 6. Kxa2 Qd5+ 7. Ka3 Qa5+ 8. Kb3 Qb5+ 9. Kc3 Qc5+ 10. Kd3 Qc2+ 11. Ke3 Qc3+! 12. Qxc3 stalemate
5... Qc3+! 6. Qxc3 Ra2+! 7. Kb1
7. Rxa2/Kxa2 stalemate
7... Rb2+! 8. Ka1 Ra2+ perpetual check/stalemate
Solution:
4. Kb1!! Qxd3+ 5. Kxa1!
mutual zugzwang
5... Rc2 5... Ra2+ 6. Kxa2! (6. Rxa2? Qc3+! 7. Rb2 (7. Qxc3 stalemate) 7... Qxf6 8. e8=Q Qa6+ 9. Kb1 Qd3+ 10. Ka2 Qa6+ 11. Kb3 Qb6+ 12. Ka3 Qe3+! 13. Qxe3 stalemate) 6... Qd5+ 7. Kb2 +- 6. Rd8 Rc1+ 7. Ka2 Rc2+ 8. Qb2! Rxb2+ 9. Kxb2 +-
Watch this study on a dynamic board! Click here!
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