MESON Chess Problem Database
Problem Display
PID: 7971 (3R4/2pP2p1/1BK3Qp/p1n1p3/pRNkN1br/1n4p1/1PB5/4r3 w - - 0 1)
Saunders, Denis M
Australian Chess Problem Magazine, 1995
#2
10 + 13
| 3936 | The Wizard of Oz | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Sxa5#
- 1...Rxe4
- 2.Qxe4#
- 1...Bxd7+
- 2.Rxd7#
- 1...Sa1
- 2.Bxc5#
- 1...Sc1
- 2.Bxc5#
- 1...Sd2
- 2.Bxc5#
- 1...cxb6
- 2.Qd6#
- 1...Re3
- Tries
- 1.Sed2?
- threat
- 2.Qd3#
- 1...Bf3+
- 2.Sxf3#
- 1...Bxd7+
- 2.Rxd7#
- 1...cxb6
- 2.Qd6#
- 1...Re3
- 2.Sxa5#
- 1...Re4
- 2.Qxe4#
- 1...Bf5
- 2.Sf3#
- 1...Sc1
- 2.Bxc5#
- 1...e4
- 2.Qxg7#
- 1...Be2!
- threat
- 1.Sc3?
- threat
- 2.Sb5#
- 2.Qd3#
- 1...Bxd7+
- 2.Rxd7#
- 1...axb4
- 2.Qd3#
- 1...cxb6
- 2.Sb5#
- 2.Qd6#
- 1...Be2
- 2.Sb5#
- 1...Rd1
- 2.Sb5#
- 2.Qe4#
- 1...Re3
- 2.Sb5#
- 2.Sxa5#
- 1...Re4
- 2.Sb5#
- 2.Qxe4#
- 1...Bf5
- 2.Sb5#
- 1...Sc1
- 2.Sb5#
- 2.Bxc5#
- 1...e4
- 2.Sb5#
- 2.Qxg7#
- 1...Bf3+!
- threat
- 1.Sxg3?
- threat
- 2.Qd3#
- 1...Bxd7+
- 2.Rxd7#
- 1...cxb6
- 2.Qd6#
- 1...Be2
- 2.Sf5#
- 1...Rd1
- 2.Qe4#
- 1...Re3
- 2.Sxa5#
- 1...Re4
- 2.Qxe4#
- 1...Bf5
- 2.Sxf5#
- 1...Sc1
- 2.Bxc5#
- 1...e4
- 2.Qxg7#
- 1...Bf3+!
- threat
- 1.Sxc5?
- threat
- 2.Sxb3#
- 2.Se6#
- 2.Qd3#
- 1...Bxd7+
- 2.Rxd7#
- 1...Sxc5
- 2.Bxc5#
- 2.Qd3#
- 1...axb4
- 2.Qd3#
- 1...cxb6
- 2.Qd3#
- 2.Qd6#
- 1...Be2
- 2.Sxb3#
- 2.Se6#
- 1...Rd1
- 2.Sxb3#
- 2.Se6#
- 2.Qe4#
- 1...Re3
- 2.Sxa5#
- 2.Sxb3#
- 2.Se6#
- 1...Re4
- 2.Sxb3#
- 2.Se6#
- 2.Qxe4#
- 1...Bf5
- 2.Sxb3#
- 2.Se6#
- 1...Be6
- 2.Sxb3#
- 2.Sxe6#
- 2.Qd3#
- 1...Sa1
- 2.Sb3#
- 2.Se6#
- 2.Qd3#
- 1...Sc1
- 2.Sb3#
- 2.Se6#
- 1...Sd2
- 2.Sb3#
- 2.Se6#
- 2.Qd3#
- 1...e4
- 2.Sxb3#
- 2.Se6#
- 2.Qxg7#
- 1...Bf3+!
- threat
- 1.Qf7?
- threat
- 2.Qd5#
- 1...Bxd7+
- 2.Rxd7#
- 2.Qxd7#
- 1...Be6!
- threat
- 1.Qe6?
- threat
- 2.Qd5#
- 2.Qxe5#
- 1...Rxe4
- 2.Qd5#
- 1...axb4
- 2.Qd5#
- 1...Rh5
- 2.Qd5#
- 1...Bxe6!
- threat
- 1.Sed2?
- Keys
- 1.Sg5!
- threat
- 2.Qd3#
- 1...Bf3+
- 2.Sxf3#
- 1...Bxd7+
- 2.Rxd7#
- 1...cxb6
- 2.Qd6#
- 1...Be2
- 2.Se6#
- 1...Rd1
- 2.Qe4#
- 1...Re3
- 2.Sxa5#
- 1...Re4
- 2.Qxe4#
- 1...Bf5
- 2.Sf3#
- 1...Sc1
- 2.Bxc5#
- 1...e4
- 2.Qxg7#
- threat
- 1.Sg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- R(a);SBLOCK::R(C)+S(D),XP(h)
- R(a);OGATE,XS(E)::QAR1(H),XR(a)
- B(f);CHECK,OGATE,P_SPINB(f),XP(I)::R(J),XB(f)
- S(b);N_GUARD::B(F),XS(i)
- P(l);N_GUARD,N_SPINS(i),XB(F)::QAR2(H)
- Tries
- Try
- S(E);
- Threat
- QAR1(H)
- Vars
- B(f);CHECK,N_GUARD::S(E),XB(f)
- B(f);CHECK,OGATE,P_SPINB(f),XP(I)::R(J),XB(f)
- P(l);N_GUARD,N_SPINS(i),XB(F)::QAR2(H)
- R(a);SBLOCK::R(C)+S(D),XP(h)
- R(a);N_GUARD::QAR1(H),XR(a)
- B(f);N_GUARD::S(E)
- S(b);N_GUARD::B(F),XS(i)
- P(j);OGATEB::QAB(H),XP(m)
- Refutation
- B(f);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- B(f);CHECK,OGATE,P_SPINB(f),XP(I)::R(J),XB(f)
- P(h);XR(C)::QAR1(H)
- B(f);::S(E)
- Refutation
- B(f);CHECK
- Try
- S(E);XP(c)
- Threat
- QAR1(H)
- Vars
- B(f);CHECK,OGATE,P_SPINB(f),XP(I)::R(J),XB(f)
- P(l);N_GUARD,N_SPINS(i),XB(F)::QAR2(H)
- B(f);N_GUARD::S(E)
- R(a);N_GUARD::QAR1(H)
- R(a);SBLOCK::R(C)+S(D),XP(h)
- R(a);N_GUARD::QAR1(H),XR(a)
- B(f);N_GUARD::S(E),XB(f)
- S(b);N_GUARD::B(F),XS(i)
- P(j);OGATEB::QAB(H),XP(m)
- Refutation
- B(f);CHECK
- Try
- S(E);XS(i)
- Threat
- DUALS(3)
- Vars
- B(f);CHECK,OGATE,P_SPINB(f),XP(I)::R(J),XB(f)
- P(h);XR(C)::QAR1(H)
- Refutation
- B(f);CHECK
- Try
- Q(H);
- Threat
- QAR1(H)
- Refutation
- B(f);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(a);XS(E)::QAR1(H)
- P(h);XR(C)::QAR1(H)
- R(g);::QAR1(H)
- Refutation
- B(f);XQ(H)
- Try
- Actual
- S(E);
- Threat
- QAR1(H)
- Vars
- B(f);CHECK,N_GUARD::S(E),XB(f)
- B(f);CHECK,OGATE,P_SPINB(f),XP(I)::R(J),XB(f)
- P(l);N_GUARD,N_SPINS(i),XB(F)::QAR2(H)
- B(f);N_GUARD::S(E)
- R(a);N_GUARD::QAR1(H)
- R(a);SBLOCK::R(C)+S(D),XP(h)
- R(a);N_GUARD::QAR1(H),XR(a)
- S(b);N_GUARD::B(F),XS(i)
- P(j);OGATEB::QAB(H),XP(m)
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