MESON Chess Problem Database
Problem Display
PID: 76502 (B1QK1R2/2BN2p1/R2qk3/2p2n2/8/8/8/8 w - - 0 1)
Holladay, Edgar Dinwiddie
HM., Providence Journal, 1946-1947
#2
7 + 5
| 6232 | Holladay Chess Problems | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qxa6
- 2.Sxc5#
- 1...Qb6
- 2.Sxc5#
- 2.Se5#
- 2.Sxb6#
- 2.Sf6#
- 2.Sb8#
- 1...Qc6
- 2.Sf6#
- 1...Se3
- 2.Rxd6#
- 1...Sg3
- 2.Rxd6#
- 1...Sd4
- 2.Rxd6#
- 1...Sh4
- 2.Rxd6#
- 1...Sh6
- 2.Rxd6#
- 1...Se7
- 2.Rxd6#
- 1...g5
- 2.Rf6#
- 1...g6
- 2.Rf6#
- 1...Qxa6
- Tries
- 1.Bxd6?
- threat
- 2.Sxc5#
- 2.Se5#
- 2.Sf6#
- 2.Sb8#
- 1...Se7
- 2.Sxc5#
- 2.Bxe7#
- 1...c4
- 2.Sc5#
- 2.Se5#
- 2.Sf6#
- 2.Sb8#
- 2.Qxc4#
- 1...Sxd6!
- threat
- 1.Bh1?
- 1...Qxa6
- 2.Sxc5#
- 1...Qb6
- 2.Sxc5#
- 2.Se5#
- 2.Sxb6#
- 2.Sf6#
- 2.Sb8#
- 1...Qc6
- 2.Sxc5#
- 2.Se5#
- 2.Sf6#
- 2.Sb8#
- 1...Se3
- 2.Rxd6#
- 1...Sg3
- 2.Rxd6#
- 1...Sd4
- 2.Rxd6#
- 1...Sh4
- 2.Rxd6#
- 1...Sh6
- 2.Rxd6#
- 1...Se7
- 2.Rxd6#
- 1...g5
- 2.Rf6#
- 1...g6
- 2.Rf6#
- 1...c4!
- 1...Qxa6
- 1.Bg2?
- 1...Qxa6
- 2.Sxc5#
- 1...Qb6
- 2.Sxc5#
- 2.Se5#
- 2.Sxb6#
- 2.Sf6#
- 2.Sb8#
- 1...Qc6
- 2.Sxc5#
- 2.Se5#
- 2.Sf6#
- 2.Sb8#
- 1...Se3
- 2.Rxd6#
- 1...Sg3
- 2.Rxd6#
- 1...Sd4
- 2.Rxd6#
- 1...Sh4
- 2.Rxd6#
- 1...Sh6
- 2.Rxd6#
- 1...Se7
- 2.Rxd6#
- 1...g5
- 2.Rf6#
- 1...g6
- 2.Rf6#
- 1...c4!
- 1...Qxa6
- 1.Bf3?
- 1...Qxa6
- 2.Sxc5#
- 1...Qb6
- 2.Sxc5#
- 2.Se5#
- 2.Sxb6#
- 2.Sf6#
- 2.Sb8#
- 1...Qc6
- 2.Sxc5#
- 2.Se5#
- 2.Sf6#
- 2.Sb8#
- 1...Se3
- 2.Rxd6#
- 1...Sg3
- 2.Rxd6#
- 1...Sd4
- 2.Rxd6#
- 1...Sh4
- 2.Rxd6#
- 1...Sh6
- 2.Rxd6#
- 1...Se7
- 2.Rxd6#
- 1...g5
- 2.Rf6#
- 1...g6
- 2.Rf6#
- 1...c4!
- 1...Qxa6
- 1.Be4?
- 1...Qxa6
- 2.Sxc5#
- 1...Qb6
- 2.Sxc5#
- 2.Se5#
- 2.Sxb6#
- 2.Sf6#
- 2.Sb8#
- 1...Qc6
- 2.Sxc5#
- 2.Se5#
- 2.Sf6#
- 2.Sb8#
- 1...Se3
- 2.Rxd6#
- 1...Sg3
- 2.Rxd6#
- 1...Sd4
- 2.Rxd6#
- 1...Sh4
- 2.Rxd6#
- 1...Sh6
- 2.Rxd6#
- 1...Se7
- 2.Rxd6#
- 1...g5
- 2.Rf6#
- 1...g6
- 2.Rf6#
- 1...c4!
- 1...Qxa6
- 1.Bb7?
- 1...Qxa6
- 2.Sxc5#
- 2.Se5#
- 2.Sb6#
- 2.Sf6#
- 2.Sb8#
- 1...Qc6
- 2.Sf6#
- 1...Qb6
- 2.Sxc5#
- 2.Se5#
- 2.Sxb6#
- 2.Sf6#
- 2.Sb8#
- 1...Se3
- 2.Rxd6#
- 1...Sg3
- 2.Rxd6#
- 1...Sd4
- 2.Rxd6#
- 1...Sh4
- 2.Rxd6#
- 1...Sh6
- 2.Rxd6#
- 1...Se7
- 2.Rxd6#
- 1...g5
- 2.Rf6#
- 1...g6
- 2.Rf6#
- 1...c4!
- 1...Qxa6
- 1.Rb6?
- 1...Qxb6
- 2.Sxc5#
- 2.Se5#
- 2.Sxb6#
- 2.Sf6#
- 2.Sb8#
- 1...Qc6
- 2.Sf6#
- 1...Se3
- 2.Rxd6#
- 1...Sg3
- 2.Rxd6#
- 1...Sd4
- 2.Rxd6#
- 1...Sh4
- 2.Rxd6#
- 1...Sh6
- 2.Rxd6#
- 1...Se7
- 2.Rxd6#
- 1...g5
- 2.Rf6#
- 1...g6
- 2.Rf6#
- 1...c4!
- 1...Qxb6
- 1.Qb7?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Se3
- 2.Rxd6#
- 2.Qe4#
- 1...Sg3
- 2.Rxd6#
- 2.Qd5#
- 1...Se7
- 2.Rxd6#
- 2.Qe4#
- 1...Qc6!
- threat
- 1.Bxd6?
- Keys
- 1.Bb8!
- 1...Qb6+
- 2.Sxb6#
- 1...Qxa6
- 2.Sxc5#
- 1...Qc6
- 2.Sf6#
- 1...Se3
- 2.Rxd6#
- 1...Sg3
- 2.Rxd6#
- 1...Sd4
- 2.Rxd6#
- 1...Sh4
- 2.Rxd6#
- 1...Sh6
- 2.Rxd6#
- 1...Se7
- 2.Rxd6#
- 1...c4
- 2.Qxc4#
- 1...g5
- 2.Rf6#
- 1...g6
- 2.Rf6#
- 1...Qb6+
- 1.Bb8!
This is after
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(c);N_PINS(C),N_SPINQ(c),XR(A)::QAB(E)+S(C),DCHECK,XP(a)
- Q(c);N_PINS(C)::QAB(E)+S(C)
- S(b);N_GUARD::R1(A),XQ(c)
- P(e);N_GUARD::R1(G)
- Tries
- Try
- B(B);N_SPINS(C),XQ(c)
- Threat
- DUALS(4)
- Refutation
- S(b);P_SPINS(b),XB(B)
- Try
- B(D);
- Vars
- Q(c);N_PINS(C),N_SPINQ(c),XR(A)::QAB(E)+S(C),DCHECK,XP(a)
- S(b);N_GUARD::R1(A),XQ(c)
- P(e);N_GUARD::R1(G)
- Refutation
- P(a);
- Try
- B(D);
- Vars
- Q(c);N_PINS(C),N_SPINQ(c),XR(A)::QAB(E)+S(C),DCHECK,XP(a)
- S(b);N_GUARD::R1(A),XQ(c)
- P(e);N_GUARD::R1(G)
- Refutation
- P(a);
- Try
- B(D);
- Vars
- Q(c);N_PINS(C),N_SPINQ(c),XR(A)::QAB(E)+S(C),DCHECK,XP(a)
- S(b);N_GUARD::R1(A),XQ(c)
- P(e);N_GUARD::R1(G)
- Refutation
- P(a);
- Try
- B(D);
- Vars
- Q(c);N_PINS(C),N_SPINQ(c),XR(A)::QAB(E)+S(C),DCHECK,XP(a)
- S(b);N_GUARD::R1(A),XQ(c)
- P(e);N_GUARD::R1(G)
- Refutation
- P(a);
- Try
- B(D);
- Vars
- Q(c);N_PINS(C)::QAB(E)+S(C)
- S(b);N_GUARD::R1(A),XQ(c)
- P(e);N_GUARD::R1(G)
- Refutation
- P(a);
- Try
- R(A);
- Vars
- Q(c);N_PINS(C)::QAB(E)+S(C)
- S(b);N_GUARD::R1(A),XQ(c)
- P(e);N_GUARD::R1(G)
- Refutation
- P(a);
- Try
- Q(E);
- Threat
- DUALS(2)
- Refutation
- Q(c);N_PINS(C)
- Try
- Actual
- B(B);
- Vars
- Q(c);CHECK,N_PINS(C)::QAB(E)+S(C),XQ(c)
- Q(c);N_PINS(C),N_SPINQ(c),XR(A)::QAB(E)+S(C),DCHECK,XP(a)
- Q(c);N_PINS(C)::QAB(E)+S(C)
- S(b);N_GUARD::R1(A),XQ(c)
- P(a);OGATE::QAB(E),XP(a)
- P(e);N_GUARD::R1(G)
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