MESON Chess Problem Database
Problem Display
PID: 163775 (3R2n1/2P5/1KpB1p2/1p3r1B/2pk1N2/2N1b3/1P1p1R2/1b1r2Q1 w - - 0 1)
Zajic, Helmut
2nd Comm., Israel Ring Ty., 1989
#2
10 + 11
| 721 | Variantim | 1991 |
SOLUTION
- SOUND
- Sets
- 1...Rxf4
- 2.Bxf4#
- 1...Re5
- 2.Bc5#
- 1...Bd3
- 2.Se6#
- 1...Be4
- 2.Sce2#
- 1...Bxf2
- 2.Qxf2#
- 1...Bxf4
- 2.Rxd2#
- 1...Rxf4
- Tries
- 1.Bf3?
- threat
- 2.Sce2#
- 1...Rxf4
- 2.Bxf4#
- 1...Bxf2
- 2.Qxf2#
- 1...Bxf4
- 2.Rxd2#
- 1...Bd3
- 2.Se6#
- 1...Re1!
- threat
- 1.Rxd2+?
- 1...Bd3
- 2.Sfe2#
- 2.Se6#
- 1...Rxd2!
- 1...Bd3
- 1.Re2?
- threat
- 2.Qxe3#
- 1...Bxg1
- 2.Bc5#
- 2.Be5#
- 1...Re5
- 2.Bc5#
- 1...Bf2
- 2.Bc5#
- 2.Be5#
- 2.Qxf2#
- 1...Rxg1!
- threat
- 1.Bf3?
- Keys
- 1.Be2!
- threat
- 2.Se6#
- 1...Rxf4
- 2.Bxf4#
- 1...Bxf2
- 2.Qxf2#
- 1...Bxf4
- 2.Rxf4#
- 1...Re5
- 2.Bc5#
- threat
- 1.Be2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- R(h);OGATE,XS(E)::R(J)+B(H),XR(h)
- R(h);SBLOCK::R(J)+B(H),DCHECK
- B(a);SBLOCK::S(E)
- B(a);SBLOCK::S(D)
- B(d);OGATE,P_SPINB(d),XR(C)::QAB(A),XB(d)
- B(d);XS(E)::QAB(A)+R(C),DCHECK,XP(c)
- Tries
- Try
- B(F);
- Threat
- S(D)
- Vars
- R(h);OGATE,XS(E)::R(J)+B(H),XR(h)
- B(d);OGATE,P_SPINB(d),XR(C)::QAB(A),XB(d)
- B(d);XS(E)::QAB(A)+R(C),DCHECK,XP(c)
- B(a);SBLOCK::S(E)
- Refutation
- R(b);
- Try
- R(C);CHECK,P_PINB(d),XP(c)
- Refutation
- R(b);XR(C)
- Try
- R(C);P_PINB(d)
- Threat
- QAB1(A),XB(d)
- Vars
- R(h);SBLOCK::R(J)+B(H),DCHECK
- Refutation
- R(b);N_SPINB(d),XQ(A)
- Try
- Actual
- B(F);
- Threat
- S(E)
- Vars
- R(h);OGATE,XS(E)::R(J)+B(H),XR(h)
- B(d);OGATE,P_SPINB(d),XR(C)::QAB(A),XB(d)
- B(d);OGATE,XS(E)::QAB(A)+R(C),DCHECK,XB(d)
- R(h);SBLOCK::R(J)+B(H),DCHECK
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