MESON Chess Problem Database
Problem Display
PID: 86252 (6Q1/1Kp4B/1p2R2b/1p1k4/1n3P1n/B7/4Npq1/2R5 w - - 0 1)
Loshinski, Lev Ilich
1st Prize, Shakhmaty v SSSR, 1955
#2
8 + 9
| 6490 | yacpdb | 2009 |
| 56 | The Problemist | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Be4#
- 2.Rxb6#
- 2.Rec6#
- 2.Rf6#
- 2.Rxh6#
- 1...Qh1
- 2.Rxb6#
- 2.Rec6#
- 2.Rf6#
- 2.Rxh6#
- 1...Qf3
- 2.Rxb6#
- 2.Rec6#
- 2.Rf6#
- 2.Rxh6#
- 1...Qh3
- 2.Be4#
- 1...Qe4
- 2.Bxe4#
- 1...Qg1
- 2.Be4#
- 1...Qh2
- 2.Be4#
- 2.Rxb6#
- 2.Rec6#
- 2.Rf6#
- 2.Rxh6#
- 1...Qg3
- 2.Be4#
- 1...Qg4
- 2.Be4#
- 1...Qg5
- 2.Be4#
- 1...Qg7
- 2.Be4#
- 1...Bg5
- 2.Rxb6#
- 2.Rec6#
- 2.Rf6#
- 2.Rh6#
- 1...Bg7
- 2.Rxb6#
- 2.Rec6#
- 2.Rf6#
- 2.Rh6#
- 1...Sa2
- 2.Re5#
- 2.Rd6#
- 1...Sc2
- 2.Re5#
- 2.Rd6#
- 1...Sd3
- 2.Re5#
- 2.Rd6#
- 1...Sa6
- 2.Re5#
- 2.Rd6#
- 1...Sc6
- 2.Re5#
- 2.Rd6#
- 1...Sf3
- 2.Be4#
- 1...Qf1
- Tries
- 1.Rd1+?
- 1...Kc4+
- 2.Rc6#
- 1...Sd3
- 2.Re5#
- 2.Rd6#
- 1...Kc5+!
- 1...Kc4+
- 1.Rcc6?
- threat
- 2.Re5#
- 2.Red6#
- 2.Qd8#
- 1...Qxg8
- 2.Be4#
- 2.Re5#
- 1...Sxc6
- 2.Re5#
- 2.Rd6#
- 1...Qg5
- 2.Be4#
- 2.Re5#
- 2.Red6#
- 1...Qg6
- 2.Re5#
- 2.Qd8#
- 1...Qg7
- 2.Be4#
- 2.Re5#
- 2.Red6#
- 1...Bg5
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Red6#
- 2.Rf6#
- 2.Rh6#
- 2.Re7#
- 2.Re8#
- 1...Bf8
- 2.Re5#
- 2.Red6#
- 1...Sf5
- 2.Re5#
- 2.Qxg2#
- 1...Sg6
- 2.Re3#
- 2.Re5#
- 2.Re7#
- 2.Re8#
- 2.Qd8#
- 1...Bxf4!
- threat
- 1.Re4+?
- 1...Kd6
- 2.Qe6#
- 2.Qd8#
- 1...Qxg8!
- 1...Kd6
- 1.Qf7?
- threat
- 2.Rxb6#
- 2.Rec6#
- 2.Rf6#
- 2.Rxh6#
- 2.Qd7#
- 1...Sc2
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Rxb6#
- 2.Rc6#
- 2.Rd6#
- 2.Rf6#
- 2.Rxh6#
- 2.Re7#
- 2.Re8#
- 1...Qh3
- 2.Be4#
- 2.Qd7#
- 1...Qe4
- 2.Bxe4#
- 2.Qd7#
- 1...Qg4
- 2.Be4#
- 2.Qd7#
- 1...Qg6
- 2.Qd7#
- 1...Qg7
- 2.Be4#
- 1...Qg8
- 2.Be4#
- 2.Qd7#
- 1...Bg5
- 2.Rxb6#
- 2.Rec6#
- 2.Rf6#
- 2.Rh6#
- 2.Qd7#
- 1...Bg7
- 2.Rxb6#
- 2.Rec6#
- 2.Rf6#
- 2.Rh6#
- 2.Qd7#
- 1...Bf8
- 2.Rxb6#
- 2.Rec6#
- 2.Rf6#
- 2.Rh6#
- 1...Sc6
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Rexc6#
- 2.Rd6#
- 2.Rf6#
- 2.Rxh6#
- 2.Re7#
- 2.Re8#
- 2.Qd7#
- 1...Sf5
- 2.Qxf5#
- 1...Sg6
- 2.Qd7#
- 1...c6
- 2.Rexc6#
- 2.Rf6#
- 2.Rxh6#
- 2.Qd7#
- 1...Bxf4!
- threat
- 1.Rd1+?
- Keys
- 1.Bc2!
- threat
- 2.Bb3#
- 1...Kc4+
- 2.Rc6#
- 1...Kc5+
- 2.Be4#
- 1...Sxc2
- 2.Re5#
- 1...Qf3
- 2.Rc6#
- 1...Qh3
- 2.Be4#
- 1...Qe4
- 2.Bxe4#
- 1...Qg3
- 2.Be4#
- 1...c5
- 2.Rg6#
- threat
- 1.Bc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 5
- Sets
- Q(b);N_GUARD::B(G)
- Q(b);N_GUARD::B(G),XQ(b)
- S(d);S_CUTQ(b)::B(G)
- Tries
- Try
- R(A);CHECK
- Vars
- K(f);CHECK,S_FLIGHT::QAB(H)+R(E),DCHECK
- Refutation
- K(f);CHECK,P-FLIGHT,P_SPINS(c)
- Try
- R(A);
- Threat
- DUALS(3)
- Refutation
- B(h);XP(D)
- Try
- R(E);CHECK
- Refutation
- Q(b);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(5)
- Vars
- Q(b);::QAR2(H)
- Q(b);N_GUARD::B(G)
- S(d);N_GUARD::QAR2(H),XS(d)
- S(d);::QAR2(H)
- Refutation
- B(h);XP(D)
- Try
- Actual
- B(G);
- Threat
- B(G)
- Vars
- K(f);CHECK,S_FLIGHT::QAB(H)+R(E),DCHECK
- K(f);CHECK,P-FLIGHT,P_SPINS(c)::R(A)+B(G)
- S(c);XB(G)::QAB(H)+R(E),DCHECK
- Q(b);N_GUARD::QAB(H)+R(E)
- Q(b);N_GUARD::B(G)
- Q(b);N_GUARD::B(G),XQ(b)
- P(i);SBLOCK::QAB(H)+R(E)
Developed and maintained by Brian Stephenson.
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