MESON Chess Problem Database
Problem Display
PID: 32439 (5K2/8/8/6Rp/1Q3B1k/2p1pr1P/8/b6R w - - 0 1)
Levman, Semyon Semyonovich
Australasian (The), 1928
#2
6 + 6
| 20 | De Problemist | 1928 |
SOLUTION
- SOUND
- Sets
- 1...Rxh3
- 2.Bxe3#
- 1...Rxf4+
- 2.Qxf4#
- 1...Rxh3
- Tries
- 1.Ra5?
- threat
- 2.Qe7#
- 1...Rxf4+
- 2.Qxf4#
- 1...Rxh3
- 2.Bh2#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Rg3
- 2.Bg5#
- 1...c2!
- threat
- 1.Rb5?
- threat
- 2.Qe7#
- 1...Rxf4+
- 2.Qxf4#
- 1...Rxh3
- 2.Bh2#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Rg3
- 2.Bg5#
- 1...c2!
- threat
- 1.Rd5?
- threat
- 2.Qe7#
- 1...Rxf4+
- 2.Qxf4#
- 1...Rxh3
- 2.Bh2#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Rg3
- 2.Bg5#
- 1...c2!
- threat
- 1.Rf5?
- threat
- 2.Qe7#
- 1...Rxh3
- 2.Bh2#
- 2.Be5#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Rxf4
- 2.Qxf4#
- 1...Rg3
- 2.Bg5#
- 1...c2!
- threat
- 1.Rg6?
- threat
- 2.Qe7#
- 1...Rxf4+
- 2.Qxf4#
- 1...Rg3
- 2.Bxg3#
- 2.Bg5#
- 1...c2!
- threat
- 1.Rg7?
- threat
- 2.Qe7#
- 1...Rxf4+
- 2.Qxf4#
- 1...Rg3
- 2.Bxg3#
- 2.Bg5#
- 1...c2!
- threat
- 1.Rg8?
- threat
- 2.Qe7#
- 1...Rxf4+
- 2.Qxf4#
- 1...Rg3
- 2.Bxg3#
- 2.Bg5#
- 1...c2!
- threat
- 1.Qa5?
- threat
- 2.Rxh5#
- 1...Rxh3
- 2.Bg3#
- 1...Rxf4+!
- threat
- 1.Qc5?
- threat
- 2.Rxh5#
- 1...Rxh3
- 2.Bg3#
- 1...Rxf4+!
- threat
- 1.Qe7?
- threat
- 2.Rgg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Rxh3
- 2.Bg3#
- 2.Rgg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Rg3
- 2.Bxg3#
- 2.Rxg3#
- 2.Rg4#
- 1...c2
- 2.Rg4#
- 2.Re5#
- 1...Rxf4+!
- threat
- 1.Qb5?
- threat
- 2.Rxh5#
- 1...Rxh3
- 2.Bg3#
- 1...Rxf4+!
- threat
- 1.Ra5?
- Keys
- 1.Re5!
- threat
- 2.Qe7#
- 1...Rxf4+
- 2.Qxf4#
- 1...Rxh3
- 2.Bh2#
- 1...Rg3
- 2.Bg5#
- threat
- 1.Re5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(d);N_PINB(D),P_SPINR(d),XP(B)::QAR(C)+B(D),XP(c)
- R(d);CHECK,OGATE,P_SPINR(d),XB(D)::QAR2(C),XR(d)
- Tries
- Try
- R(E);
- Threat
- QAB(C)
- Vars
- R(d);CHECK,OGATE,P_SPINR(d),XB(D)::QAR2(C),XR(d)
- R(d);N_PINB(D),SBLOCK::QAR(C)+B(D),DCHECK
- Refutation
- P(b);
- Try
- R(E);
- Threat
- QAB(C)
- Vars
- R(d);CHECK,OGATE,P_SPINR(d),XB(D)::QAR2(C),XR(d)
- R(d);N_PINB(D),SBLOCK::QAR(C)+B(D),DCHECK
- Refutation
- P(b);
- Try
- R(E);
- Threat
- QAB(C)
- Vars
- R(d);CHECK,OGATE,P_SPINR(d),XB(D)::QAR2(C),XR(d)
- R(d);N_PINB(D),SBLOCK::QAR(C)+B(D),DCHECK
- Refutation
- P(b);
- Try
- R(E);N_SPINB(D)
- Threat
- QAB(C)
- Vars
- R(d);OGATE,P_PINR(E),P_SPINR(d),XB(D)::QAR2(C),XR(d)
- R(d);SBLOCK::QAR(C)+B(D),DCHECK
- Refutation
- P(b);
- Try
- R(E);
- Threat
- QAB(C)
- Vars
- R(d);CHECK,OGATE,P_SPINR(d),XB(D)::QAR2(C),XR(d)
- Refutation
- P(b);
- Try
- R(E);
- Threat
- QAB(C)
- Vars
- R(d);CHECK,OGATE,P_SPINR(d),XB(D)::QAR2(C),XR(d)
- Refutation
- P(b);
- Try
- R(E);
- Threat
- QAB(C)
- Vars
- R(d);CHECK,OGATE,P_SPINR(d),XB(D)::QAR2(C),XR(d)
- Refutation
- P(b);
- Try
- Q(C);
- Threat
- R1(E),XP(f)
- Vars
- R(d);N_PINB(D),P_SPINR(d),XP(B)::B(D)
- Refutation
- R(d);CHECK,XB(D)
- Try
- Q(C);
- Threat
- R1(E),XP(f)
- Vars
- R(d);N_PINB(D),P_SPINR(d),XP(B)::B(D)
- Refutation
- R(d);CHECK,XB(D)
- Try
- Q(C);
- Threat
- DUALS(13)
- Refutation
- R(d);CHECK,XB(D)
- Try
- Q(C);
- Threat
- R1(E),XP(f)
- Vars
- R(d);N_PINB(D),P_SPINR(d),XP(B)::B(D)
- Refutation
- R(d);CHECK,XB(D)
- Try
- Actual
- R(E);
- Threat
- QAB(C)
- Vars
- R(d);CHECK,OGATE,P_SPINR(d),XB(D)::QAR2(C),XR(d)
- R(d);N_PINB(D),P_SPINR(d),SBLOCK,XP(B)::QAR(C)+B(D)
- R(d);N_PINB(D),SBLOCK::QAR(C)+B(D),DCHECK
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