MESON Chess Problem Database
Problem Display
PID: 65269 (q1N1Rb2/1PBp2r1/2Ppnp2/p1Npkp1R/1n2B2Q/2P4b/6PP/1K6 w - - 0 1)
Zappas, Byron
1st Prize, Bournemouth, 1989
#2
13 + 13
| 4827 | FIDE Album (1989-1991) | 1997 |
| 56 | The Problemist | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Rxg2
- 2.Sxd7#
- 1...Rg3
- 2.Sxd7#
- 2.Qxg3#
- 1...Rg4
- 2.Rxf5#
- 1...Rg5
- 2.Sxd7#
- 1...Rg6
- 2.Sxd7#
- 1...Re7
- 2.Bxd6#
- 1...Rf7
- 2.Qg3#
- 1...Rh7
- 2.Qg3#
- 1...Rg8
- 2.Sxd7#
- 1...Bxg2
- 2.Rxf5#
- 1...Bg4
- 2.Qg3#
- 1...Be7
- 2.Sxd7#
- 1...Sa2
- 2.Sd3#
- 1...Sc2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sa6
- 2.Sd3#
- 1...Sxc6
- 2.Sd3#
- 1...dxe4
- 2.Qxe4#
- 1...dxc6
- 2.Rxe6#
- 1...Rxg2
- Tries
- 1.Sxd6?
- threat
- 2.Sc4#
- 2.Sf7#
- 1...dxe4
- 2.Qxe4#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Qg3#
- 1...Bxd6!
- threat
- 1.Bf3?
- threat
- 2.Qd4#
- 1...Sxc6
- 2.Sd3#
- 1...Bg4
- 2.Qg3#
- 1...Re7
- 2.Bxd6#
- 1...Be7
- 2.Sxd7#
- 1...Sc2
- 2.Sd3#
- 1...d4
- 2.Qxd4#
- 2.Qe4#
- 2.cxd4#
- 1...Rg4!
- threat
- 1.Bd8?
- threat
- 2.Bxf6#
- 1...dxe4
- 2.Qxe4#
- 1...Rg4
- 2.Rxf5#
- 1...Bg4
- 2.Qg3#
- 1...Rg5
- 2.Sxd7#
- 1...Rg6
- 2.Sxd7#
- 1...Rf7
- 2.Qg3#
- 1...Be7
- 2.Sxd7#
- 1...Re7!
- threat
- 1.Rg5?
- threat
- 2.Qg3#
- 1...Rxg5
- 2.Sxd7#
- 1...dxe4
- 2.Qxe4#
- 1...Re7
- 2.Bxd6#
- 1...Be7
- 2.Sxd7#
- 1...Sd3
- 2.Sxd3#
- 1...fxg5!
- threat
- 1.Re7?
- threat
- 2.Sxd7#
- 2.Bxd6#
- 1...Rxe7
- 2.Bxd6#
- 1...Bxe7
- 2.Sxd7#
- 1...dxe4
- 2.Qxe4#
- 1...dxc6
- 2.Sd7#
- 2.Bxd6#
- 2.Rxe6#
- 1...Rg4
- 2.Bxd6#
- 2.Rxf5#
- 1...Bg4
- 2.Bxd6#
- 2.Qg3#
- 1...Qb8
- 2.Sxd7#
- 1...Qxc8!
- threat
- 1.Qxh3?
- threat
- 2.Rxf5#
- 2.Qxf5#
- 1...Kf4
- 2.Rxf5#
- 1...Rg4
- 2.Rxf5#
- 1...Rg5!
- threat
- 1.Qg4?
- threat
- 2.Rxf5#
- 1...Rg5
- 2.Sxd7#
- 1...Bxg4!
- threat
- 1.gxh3?
- threat
- 2.Rxf5#
- 1...dxe4
- 2.Qxe4#
- 1...Rg5
- 2.Sxd7#
- 1...Rg1+!
- threat
- 1.g3?
- threat
- 2.Qf4#
- 1...Rxg3
- 2.Sxd7#
- 2.Qxg3#
- 1...dxe4
- 2.Qxe4#
- 1...Rg4
- 2.Rxf5#
- 1...Re7
- 2.Bxd6#
- 1...Be7
- 2.Sxd7#
- 1...Sd3
- 2.Sxd3#
- 1...Bg4!
- threat
- 1.g4?
- threat
- 2.Rxf5#
- 2.Qg3#
- 1...Kf4
- 2.Qg3#
- 1...Rxg4
- 2.Rxf5#
- 1...Bxg4
- 2.Qg3#
- 1...dxe4
- 2.Rxf5#
- 1...Re7
- 2.Bxd6#
- 2.Rxf5#
- 1...Be7
- 2.Rxf5#
- 1...Sd3
- 2.Rxf5#
- 1...Rg5!
- threat
- 1.cxd7?
- threat
- 2.Rxe6#
- 1...dxe4
- 2.Qxe4#
- 1...Rg4
- 2.Rxf5#
- 1...Bg4
- 2.Qg3#
- 1...Re7
- 2.Bxd6#
- 1...Be7!
- threat
- 1.Sxd6?
- Keys
- 1.Bc2!
- threat
- 2.Qd4#
- 1...Sxc2
- 2.Sd3#
- 1...Sxc6
- 2.Sd3#
- 1...Rg4
- 2.Rxf5#
- 1...Bg4
- 2.Qg3#
- 1...d4
- 2.Qxd4#
- 2.Qe4#
- 1...Re7
- 2.Bxd6#
- 1...Be7
- 2.Sxd7#
- threat
- 1.Bc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 12
- Sets
- R(k);N_GUARD,XP(B)::S(G),XP(j)
- R(k);S_CUTB(a)::R1(H),XP(f)
- R(k);N_GUARD,N_SPINP(f),P_SPINP(g)::S(G),XP(j)
- R(k);N_GUARD::S(G),XP(j)
- R(k);N_SPINS(h),S_CUTB(m)::B(K),XP(g)
- R(k);N_GUARD::QAB(F)
- B(a);N_GUARD,XP(B)::R1(H),XP(f)
- B(a);S_CUTR(k)::QAB(F)
- B(m);N_SPINS(h),S_CUTR(k)::S(G),XP(j)
- S(b);N_GUARD::S(G)
- S(b);N_GUARD::S(G),XS(b)
- S(b);N_GUARD,XP(I)::S(G)
- P(d);OGATE,XB(E)::QAR1(F),XP(d)
- P(j);N_GUARD,XP(I)::R1(M),XS(h)
- Tries
- Try
- S(L);XP(g)
- Threat
- DUALS(2)
- Vars
- P(d);OGATE,XB(E)::QAR1(F),XP(d)
- Refutation
- B(m);P_SPINB(m),XS(L)
- Try
- B(E);
- Threat
- QAB1(F)
- Vars
- S(b);N_GUARD,XP(I)::S(G)
- B(a);S_CUTR(k)::QAB(F)
- R(k);N_SPINS(h),S_CUTB(m)::B(K),XP(g)
- B(m);N_SPINS(h),S_CUTR(k)::S(G),XP(j)
- S(b);N_GUARD::S(G)
- Refutation
- R(k);
- Try
- B(K);
- Threat
- B(K),XP(i)
- Vars
- P(d);OGATE,XB(E)::QAR1(F),XP(d)
- R(k);S_CUTB(a)::R1(H),XP(f)
- B(a);S_CUTR(k)::QAB(F)
- R(k);N_GUARD,N_SPINP(f)::S(G),XP(j)
- R(k);N_GUARD::S(G),XP(j)
- R(k);N_GUARD::QAB(F)
- B(m);N_SPINS(h),S_CUTR(k)::S(G),XP(j)
- Refutation
- R(k);N_SPINS(h)
- Try
- R(H);
- Threat
- QAB(F)
- Vars
- R(k);N_GUARD,N_SPINP(f),P_SPINP(g),XR(H)::S(G),XP(j)
- P(d);OGATE,XB(E)::QAR1(F),XP(d)
- R(k);N_SPINS(h),S_CUTB(m)::B(K),XP(g)
- B(m);N_SPINS(h),S_CUTR(k)::S(G),XP(j)
- S(b);N_GUARD::S(G),XS(b)
- Refutation
- P(i);N_SPINP(f),P_SPINP(g),XR(H)
- Try
- R(M);
- Threat
- DUALS(2)
- Vars
- R(k);N_SPINS(h),XR(M)::B(K),XP(g)
- B(m);N_SPINS(h),XR(M)::S(G),XP(j)
- P(d);OGATE,XB(E)::QAR1(F),XP(d)
- Q(l);::S(G),XP(j)
- Refutation
- Q(l);XS(L)
- Try
- Q(F);XB(a)
- Threat
- DUALS(2)
- Vars
- K(e);N_SPINP(f),N_SPINS(h),P_SPINP(g),S_FLIGHT::R1(H),XP(f)
- R(k);::R1(H),XP(f)
- Refutation
- R(k);N_SPINP(f),P_SPINP(g)
- Try
- Q(F);
- Threat
- R1(H),XP(f)
- Vars
- R(k);N_GUARD,N_SPINP(f),P_SPINP(g)::S(G),XP(j)
- Refutation
- B(a);XQ(F)
- Try
- P(B);XB(a)
- Threat
- R1(H),XP(f)
- Vars
- P(d);OGATE,XB(E)::QAR1(F),XP(d)
- R(k);N_GUARD,N_SPINP(f),P_SPINP(g)::S(G),XP(j)
- Refutation
- R(k);CHECK
- Try
- P(B);
- Threat
- QAB1(F)
- Vars
- P(d);OGATE,XB(E)::QAR1(F),XP(d)
- R(k);S_CUTB(a)::R1(H),XP(f)
- R(k);N_SPINS(h),S_CUTB(m)::B(K),XP(g)
- B(m);N_SPINS(h),S_CUTR(k)::S(G),XP(j)
- S(b);N_GUARD::S(G),XS(b)
- Refutation
- B(a);
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- K(e);N_SPINP(f),N_SPINS(h),P_SPINP(g),S_FLIGHT::QAB1(F)
- R(k);XP(B)::R1(H),XP(f)
- B(a);XP(B)::QAB(F)
- P(d);XB(E)::R1(H),XP(f)
- B(m);N_SPINS(h)::R1(H),XP(f)
- S(b);::R1(H),XP(f)
- Refutation
- R(k);N_SPINP(f),P_SPINP(g)
- Try
- P(I);XP(j)
- Threat
- R1(M),XS(h)
- Vars
- P(d);OGATE,XB(E)::QAR1(F),XP(d)
- R(k);S_CUTB(a)::R1(H),XP(f)
- B(a);S_CUTR(k)::QAB(F)
- R(k);N_SPINS(h),S_CUTB(m)::B(K),XP(g)
- Refutation
- B(m);N_SPINS(h)
- Try
- Actual
- B(E);
- Threat
- QAB1(F)
- Vars
- S(b);N_GUARD,XB(E)::S(G)
- S(b);N_GUARD,XP(I)::S(G)
- R(k);S_CUTB(a)::R1(H),XP(f)
- B(a);S_CUTR(k)::QAB(F)
- R(k);N_SPINS(h),S_CUTB(m)::B(K),XP(g)
- B(m);N_SPINS(h),S_CUTR(k)::S(G),XP(j)
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