MESON Chess Problem Database
Problem Display
PID: 45504 (2B1RRK1/3N2P1/3pNpp1/1nnp1kp1/r7/2PP2P1/b1Q4B/8 w - - 0 1)
Shaham, Mordecai
3rd HM., Israel Ring Ty., 1972
#2
12 + 10
| 3841 | The Art of Israeli Chess Composition | 1983 |
SOLUTION
- SOUND
- Sets
- 1...Rg4
- 2.Rxf6#
- 1...g4
- 2.Rxf6#
- 1...Rg4
- Tries
- 1.Sd4+?
- 1...Kg4
- 2.Sxf6#
- 1...Rxd4
- 2.Sxc5#
- 1...Sxd4!
- 1...Kg4
- 1.Se5?
- threat
- 2.Sd4#
- 2.Sxc5#
- 1...Kxe5
- 2.Sxc5#
- 1...Sxd3
- 2.Sc5#
- 1...Sxe6
- 2.d4#
- 1...Rd4
- 2.Sxd4#
- 2.Sxc5#
- 1...Ra7
- 2.Sd4#
- 2.g4#
- 1...Ra8
- 2.Sd4#
- 2.g4#
- 1...Sd4
- 2.Sxd4#
- 2.g4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Sb3
- 2.Sd4#
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sd8#
- 2.d4#
- 1...Se4
- 2.Sd4#
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sd8#
- 2.g4#
- 1...Sa6
- 2.Sd4#
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sd8#
- 2.d4#
- 1...Sb7
- 2.Sd4#
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sd8#
- 2.d4#
- 1...Sd7
- 2.d4#
- 1...d4
- 2.g4#
- 1...g4!
- threat
- 1.Qe2?
- threat
- 2.Rxf6#
- 1...Se4
- 2.Qf3#
- 2.g4#
- 1...Sxd7!
- threat
- 1.g4+?
- 1...Rxg4
- 2.Rxf6#
- 1...Kxg4!
- 1...Rxg4
- 1.Sd4+?
- Keys
- 1.Sxf6!
- threat
- 2.Sd4#
- 2.Sxc5#
- 1...Ke5
- 2.Sxc5#
- 1...Sxd3
- 2.Sd4#
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sd8#
- 1...Sxe6
- 2.d4#
- 1...Rd4
- 2.Sxd4#
- 2.Sxc5#
- 1...Re4
- 2.Sd4#
- 1...Ra7
- 2.Sd4#
- 2.g4#
- 1...Ra8
- 2.Sd4#
- 2.g4#
- 1...Sd4
- 2.Sxd4#
- 2.g4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Sb3
- 2.Sd4#
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sd8#
- 2.d4#
- 1...Se4
- 2.Sd4#
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sd8#
- 2.g4#
- 1...Sa6
- 2.Sd4#
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sd8#
- 2.d4#
- 1...Sb7
- 2.Sd4#
- 2.Sf4#
- 2.Sc5#
- 2.Sc7#
- 2.Sd8#
- 2.d4#
- 1...Sd7
- 2.d4#
- 1...d4
- 2.g4#
- 1...g4
- 2.Sd7#
- threat
- 1.Sxf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 1
- Sets
- R(b);SBLOCK::R1(K),XP(i)
- P(g);SBLOCK::R1(K),XP(i)
- Tries
- Try
- S(F);CHECK
- Vars
- K(f);N_SPINP(i),S_FLIGHT::B(I)+S(G),DCHECK,XP(i)
- R(b);XS(F)::B(I)+S(G),XS(d)
- Refutation
- S(c);XS(F)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINP(i),P-FLIGHT,XS(G)::R(J)+S(F),XS(d)
- S(d);P_SPINS(d),XP(D)::B(I)+S(F)
- S(d);N_GUARD,P_SPINS(d),XS(F)::QAB(A)+P(D)
- S(c);::B(I)+S(F),DCHECK
- S(d);N_GUARD::QAB(A)+P(D)
- P(e);P_PINS(F),S_CUTR(b)::P(E)
- Refutation
- P(g);
- Try
- Q(A);
- Threat
- R1(K),XP(i)
- Refutation
- S(d);XS(G)
- Try
- P(E);CHECK
- Vars
- R(b);SBLOCK,XP(E)::R1(K),XP(i)
- Refutation
- K(f);N_SPINP(i),S_FLIGHT,XP(E)
- Try
- Actual
- S(G);XP(i)
- Threat
- DUALS(2)
- Vars
- K(f);P-FLIGHT::R(J)+S(F),XS(d)
- S(d);N_GUARD,P_SPINS(d),XS(F)::QAB(A)+P(D)
- R(b);::B(I)+S(F),DCHECK
- S(c);::B(I)+S(F),DCHECK
- S(d);N_GUARD::QAB(A)+P(D)
- P(e);P_PINS(F),S_CUTR(b)::P(E)
- P(g);SBLOCK::R(K)+S(G)
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