What is the right move?

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This position happened this Sunday. What is the right move for White? Ra5+ or Qg3?

Scroll down for the correct answer.



















The correct move is Qg3 which maintains the lead white has. The sac Ra4+ is not a good idea and turns a winning position into a theoretical drawn position.

+4.30 [+] [*] 1. Qg3 Nd7 2. Rab1 Rc5 3. R5b4 Kb7 4. Rxd4 Kc8 5. Be3 Rc2 6. Rdb4 Ra6

0.00 [+] [*] 1. Ra4+ bxa5 2. Qxa5+ Kb7 3. Rb1+ Kc6 4. Qb5+ Kc7 5. Rc1+ Kd8 6. Ba5+ Rxa5 7. Qxa5+ Ke8 8. Rxc8+ Qxc8 9. Qe5+ Qe6 10. Qxd4 Nd7 11. Qb4 Qe5 12. h3 Qa1+ 13. Kf2 Qc1 14. d4 Qc2+ 15. Kg3 Qc7+ 16. Kf2 Qc2+ (depth 27, 0:00:21)


In the game, Ray playing Black won against Luke after he sacrificed the rook and missed the draw shown in the lines above.


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