MESON Chess Problem Database
Problem Display
PID: 76501 (3b1KB1/8/1B1nr1N1/1P1k2nR/2N2p2/3P1r2/3Q4/2R5 w - - 0 1)
Holladay, Edgar Dinwiddie
Comm., American Chess Bulletin, 1946
#2
10 + 7
| 6232 | Holladay Chess Problems | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rxd3
- 2.Qxd3#
- 1...Re3
- 2.Sxf4#
- 1...Rg3
- 2.Sxf4#
- 1...Rh3
- 2.Sxf4#
- 1...Bc7
- 2.Se7#
- 1...Be7+
- 2.Sxe7#
- 1...Rxd3
- Tries
- 1.Rxg5+?
- 1...Sf5
- 2.Rxf5#
- 1...Bxg5!
- 1...Sf5
- 1.Qe1?
- threat
- 2.Bxe6#
- 2.Qe5#
- 2.Qxe6#
- 1...Be7+
- 2.Sxe7#
- 1...Bxb6
- 2.Qe5#
- 1...Sxc4
- 2.Qxe6#
- 1...Sxb5
- 2.Qe4#
- 2.Qxe6#
- 1...Re3
- 2.Sxf4#
- 1...Bf6
- 2.Bxe6#
- 2.Qxe6#
- 1...Se4
- 2.Qxe4#
- 2.dxe4#
- 1...Sf5
- 2.Qe5#
- 1...Sf7!
- threat
- 1.Qe3?
- threat
- 2.Bxe6#
- 2.Qd4#
- 2.Qc5#
- 2.Qe5#
- 2.Qxe6#
- 1...Be7+
- 2.Sxe7#
- 1...Rxe3
- 2.Sxf4#
- 1...Bxb6
- 2.Sxb6#
- 2.Se7#
- 2.Bxe6#
- 2.Qe5#
- 1...Sxc4
- 2.Qd4#
- 2.Qc5#
- 2.Qxe6#
- 1...Sxb5
- 2.Qc5#
- 2.Qxf3#
- 2.Qe4#
- 2.Qxe6#
- 1...Bf6
- 2.Bxe6#
- 2.Qc5#
- 2.Qxe6#
- 1...Se4
- 2.Qd4#
- 2.Qxe4#
- 2.dxe4#
- 1...Sf5
- 2.Qc5#
- 2.Qe5#
- 1...Sb7
- 2.Bxe6#
- 2.Qd4#
- 2.Qxf3#
- 2.Qe4#
- 2.Qe5#
- 2.Qxe6#
- 1...Sf7
- 2.Qd4#
- 2.Qc5#
- 1...fxe3+!
- threat
- 1.Qb2?
- threat
- 2.Qd4#
- 2.Qe5#
- 1...Be7+
- 2.Sxe7#
- 1...Rxd3
- 2.Qe5#
- 1...Bxb6
- 2.Sxb6#
- 2.Qe5#
- 1...Sxc4
- 2.Qd4#
- 1...Sxb5
- 2.Qxb5#
- 1...Re3
- 2.Sxf4#
- 2.Qd4#
- 1...Sf5
- 2.Qe5#
- 1...Sf7
- 2.Qd4#
- 1...Bf6!
- threat
- 1.Qe2?
- threat
- 2.Bxe6#
- 2.Qe5#
- 2.Qxe6#
- 1...Be7+
- 2.Sxe7#
- 1...Bxb6
- 2.Qe5#
- 1...Sxc4
- 2.Qxe6#
- 1...Sxb5
- 2.Qxf3#
- 2.Qe4#
- 2.Qxe6#
- 1...Bf6
- 2.Bxe6#
- 2.Qxe6#
- 1...Re3
- 2.Sxf4#
- 1...Se4
- 2.Qxe4#
- 2.dxe4#
- 1...Sf5
- 2.Qe5#
- 1...Sf7!
- threat
- 1.Rxg5+?
- Keys
- 1.Qxf4!
- 1...Rxf4+
- 2.Sxf4#
- 1...Be7+
- 2.Sxe7#
- 1...Rxd3
- 2.Qe5#
- 1...Bxb6
- 2.Sxb6#
- 1...Sxc4
- 2.dxc4#
- 1...Sxb5
- 2.Qxf3#
- 1...Rf1
- 2.Se3#
- 1...Rf2
- 2.Se3#
- 1...Re3
- 2.Sxe3#
- 2.Qxd6#
- 2.Qd4#
- 1...Rg3
- 2.Qe5#
- 2.Qxd6#
- 2.Qd4#
- 1...Rh3
- 2.Qe5#
- 2.Qxd6#
- 2.Qd4#
- 1...Bf6
- 2.Qxd6#
- 1...Bc7
- 2.Se7#
- 1...Se4
- 2.dxe4#
- 1...Sf5
- 2.Qe5#
- 1...Sb7
- 2.Qxf3#
- 1...Sf7
- 2.Qd4#
- 1...Sc8
- 2.Qxf3#
- 1...Se8
- 2.Qxf3#
- 1...Rxf4+
- 1.Qxf4!
This is a version of 17302
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 13
- REMOVED MATES = 3
- Sets
- R(a);N_SPINR(f),OGATE,P_SPINR(a),XP(C)::QAR2(B),XR(a)
- R(a);N_GUARD::S(H),XP(b)
- B(g);N_GUARD::S(H)
- B(g);CHECK,N_GUARD::S(H),XB(g)
- Tries
- Try
- R(F);CHECK,XS(d)
- Vars
- S(e);N_GUARD,P_SPINS(e)::R(F),XS(e)
- Refutation
- B(g);XR(F)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- B(g);CHECK,N_GUARD::S(H),XB(g)
- B(g);XB(G)::QAR1(B)
- S(e);XS(D)::QAB1(B),XR(f)
- R(a);N_GUARD::S(H),XP(b)
- S(e);N_SPINS(d)::QAR1(B)
- Refutation
- S(e);N_SPINR(f)
- Try
- Q(B);
- Threat
- DUALS(5)
- Vars
- B(g);CHECK,N_GUARD::S(H),XB(g)
- R(a);N_GUARD,XQ(B)::S(H),XP(b)
- Refutation
- P(b);CHECK,XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- B(g);CHECK,N_GUARD::S(H),XB(g)
- R(a);XP(C)::QAR1(B)
- S(e);XS(D)::QAR1(B)
- S(e);OGATE,XP(E)::QAR2(B),XS(e)
- S(e);N_SPINS(d)::QAR1(B)
- S(e);N_SPINR(f)::QAR1(B)
- Refutation
- B(g);
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- B(g);CHECK,N_GUARD::S(H),XB(g)
- B(g);XB(G)::QAR1(B)
- S(e);XS(D)::QAB1(B),XR(f)
- R(a);N_GUARD::S(H),XP(b)
- S(e);N_SPINS(d)::QAR1(B)
- Refutation
- S(e);N_SPINR(f)
- Try
- Actual
- Q(B);P_SPINQ(B),XP(b)
- Vars
- R(a);CHECK,XQ(B)::S(H),XR(a)
- B(g);CHECK,N_GUARD::S(H),XB(g)
- R(a);N_PINQ(B),XP(C)::QAR1(B)
- B(g);XB(G)::S(D),XB(g)
- S(e);OGATE,XS(D)::P(C),XS(e)
- S(e);N_GUARD,XP(E)::QAB(B),XR(a)
- R(a);N_GUARD::S(D)
- B(g);N_PINQ(B)::QAR1(B),XS(e)
- B(g);N_GUARD::S(H)
- S(e);OGATE::P(C),XS(e)
- S(e);N_PINQ(B),N_SPINS(d)::QAR1(B)
- S(e);N_GUARD::QAB(B),XR(a)
- S(e);N_PINQ(B),N_SPINR(f)::QAR1(B)
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