MESON Chess Problem Database
Problem Display
PID: 88986 (nRrr4/2BRb2q/p3P3/Npkp1pQ1/p1P1p3/P1N1P3/KPBP4/8 w - - 0 1)
Ouellet, Charles
The Problemist, 1992
#2
14 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qg6
- 2.Qxe7#
- 1...Qg8
- 2.Qxe7#
- 1...Qh1
- 2.Qxe7#
- 1...Qh3
- 2.Qxe7#
- 1...Qh5
- 2.Qxe7#
- 1...Qh6
- 2.Qxe7#
- 1...Qh8
- 2.Qxe7#
- 1...Re8
- 2.Rxd5#
- 1...Rf8
- 2.Rxd5#
- 1...Rg8
- 2.Rxd5#
- 1...Rh8
- 2.Rxd5#
- 1...Bxg5
- 2.Bd6#
- 1...Bd6
- 2.Bxd6#
- 1...Bf6
- 2.Bd6#
- 1...Sb6
- 2.Bxb6#
- 1...bxc4
- 2.Sxa4#
- 1...b4
- 2.Sxa4#
- 2.axb4#
- 1...dxc4
- 2.Sxe4#
- 1...d4
- 2.Sxe4#
- 2.exd4#
- 1...f4
- 2.Qxd5#
- 1...Qg6
- Tries
- 1.Sxe4+?
- 1...fxe4
- 2.Qxd5#
- 1...dxe4!
- 1...fxe4
- 1.Sb7+?
- 1...Kc6
- 2.cxd5#
- 1...Kxc4!
- 1...Kc6
- 1.Bxe4?
- threat
- 2.d4#
- 1...bxc4
- 2.Sxa4#
- 1...dxc4
- 2.Sb7#
- 1...dxe4
- 2.Sxe4#
- 1...fxe4
- 2.Qxd5#
- 1...Qh8
- 2.Qxe7#
- 1...Bf6
- 2.Bd6#
- 1...d4
- 2.exd4#
- 1...Qg7!
- threat
- 1.Qf6?
- threat
- 2.Qd4#
- 1...Bxf6
- 2.Bd6#
- 1...Qh8
- 2.Qxe7#
- 1...d4
- 2.Qxd4#
- 2.Qe5#
- 2.exd4#
- 1...Qg7!
- threat
- 1.Qxf5?
- threat
- 2.Sxe4#
- 2.Qxd5#
- 1...Rxd7
- 2.Sxe4#
- 1...Sxc7
- 2.Sxe4#
- 1...Qh1
- 2.Qxd5#
- 1...Qh4
- 2.Qxd5#
- 1...Qh5
- 2.Sxe4#
- 1...Sb6
- 2.Sxe4#
- 2.Bxb6#
- 1...Qxf5!
- threat
- 1.Qg7?
- threat
- 2.Qd4#
- 1...Qh8
- 2.Qxe7#
- 1...Bf6
- 2.Bd6#
- 1...d4
- 2.Qxd4#
- 2.Qe5#
- 2.exd4#
- 1...Qxg7!
- threat
- 1.b3?
- threat
- 2.b4#
- 1...b4
- 2.Sxa4#
- 2.axb4#
- 1...axb3+!
- threat
- 1.cxb5?
- threat
- 2.Sxa4#
- 1...axb5
- 2.Rxb5#
- 1...Sb6
- 2.Bxb6#
- 1...Rxb8!
- threat
- 1.Sxe4+?
- Keys
- 1.Bxa4!
- threat
- 2.b4#
- 1...bxa4
- 2.Sxa4#
- 1...bxc4
- 2.Sb7#
- 1...dxc4
- 2.Sxe4#
- 1...b4
- 2.axb4#
- threat
- 1.Bxa4!
There are these versions: 179252
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 16
- Sets
- Q(i);N_GUARD::QAB(J),XB(h)
- R(l);N_GUARD::R1(M),XP(e)
- B(h);N_GUARD,XQ(J)::B(L)
- B(h);N_GUARD::B(L),XB(h)
- B(h);N_GUARD::B(L)
- S(j);N_GUARD::B(L),XS(j)
- P(c);N_GUARD,XP(H)::S(F),XP(a)
- P(e);N_GUARD,P_SPINP(f),XP(H)::S(F),XP(b)
- P(f);OGATE,P_SPINP(e)::QAR1(J),XP(e)
- Tries
- Try
- S(F);CHECK,XP(b)
- Vars
- P(f);OGATE,P_SPINP(e),XS(F)::QAR1(J),XP(e)
- Refutation
- P(e);P_SPINP(f),XS(F)
- Try
- S(I);CHECK
- Vars
- K(d);P-FLIGHT::P(H),XP(e)
- Refutation
- K(d);P-FLIGHT,XP(H)
- Try
- B(C);XP(b)
- Threat
- P(D)
- Vars
- P(c);N_GUARD,XP(H)::S(F),XP(a)
- P(e);P_SPINP(f),SBLOCK,XP(H)::S(I)
- P(e);P_SPINP(f),XB(C)::S(F),XP(e)
- P(f);OGATE,P_SPINP(e),XB(C)::QAR1(J),XP(e)
- Q(i);N_GUARD::QAB(J),XB(h)
- B(h);N_GUARD::B(L)
- P(e);OGATE,P_SPINP(f)::P(G),XP(e)
- Refutation
- Q(i);
- Try
- Q(J);
- Threat
- QAB1(J)
- Vars
- B(h);N_GUARD,XQ(J)::B(L)
- Q(i);N_GUARD::QAB(J),XB(h)
- Refutation
- Q(i);
- Try
- Q(J);P_PINP(e),XP(f)
- Threat
- DUALS(2)
- Vars
- R(l);XR(M)::S(F),XP(b)
- S(j);XB(L)::S(F),XP(b)
- Q(i);::QAR1(J),XP(e)
- Q(i);::S(F),XP(b)
- Refutation
- Q(i);N_SPINP(e),XQ(J)
- Try
- Q(J);
- Threat
- QAB1(J)
- Vars
- Q(i);N_GUARD::QAB(J),XB(h)
- B(h);N_GUARD::B(L)
- Refutation
- Q(i);XQ(J)
- Try
- P(B);
- Threat
- P(B)
- Refutation
- P(a);CHECK,XP(B)
- Try
- P(H);XP(c)
- Threat
- S(F),XP(a)
- Vars
- P(g);OGATE,XP(H)::R1(N),XP(g)
- S(j);N_GUARD::B(L),XS(j)
- Refutation
- R(k);XR(N)
- Try
- Actual
- B(C);XP(a)
- Threat
- P(B)
- Vars
- P(c);XB(C)::S(F),XP(c)
- P(c);SBLOCK,XP(H)::S(I)
- P(e);N_GUARD,P_SPINP(f),XP(H)::S(F),XP(b)
- P(c);OGATE::P(E),XP(c)
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