MESON Chess Problem Database
Problem Display
PID: 208186 (8/1p2K2p/8/2n1k1n1/1N1p1p1N/4P3/4Q3/4R3 w - - 0 1)
Barry, JJ
Australian Town and Country, 1875
#2
6 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Tries
- 1.Qd3?
- threat
- 2.Qf5#
- 2.Qxd4#
- 2.exd4#
- 1...dxe3
- 2.Qd5#
- 1...fxe3
- 2.Qf5#
- 1...Sb3
- 2.Qf5#
- 2.exd4#
- 1...Sce4
- 2.Qxd4#
- 2.exd4#
- 1...Sce6
- 2.Qf5#
- 2.exd4#
- 1...Sf3
- 2.Sxf3#
- 2.Qf5#
- 2.exd4#
- 1...Sge4
- 2.Qxd4#
- 2.exd4#
- 1...Sge6
- 2.Sf3#
- 2.Qf5#
- 2.exd4#
- 1...f3
- 2.Qf5#
- 2.Qxd4#
- 1...Sxd3!
- threat
- 1.Qf3?
- threat
- 2.Qd5#
- 2.Qxf4#
- 2.exf4#
- 1...dxe3
- 2.Qd5#
- 1...fxe3
- 2.Qf5#
- 1...Sd3
- 2.Sxd3#
- 2.Qd5#
- 2.exf4#
- 1...Sce4
- 2.Qxf4#
- 2.exf4#
- 1...Sce6
- 2.Sd3#
- 2.Qd5#
- 2.exf4#
- 1...Sh3
- 2.Qd5#
- 2.exf4#
- 1...Sge4
- 2.Qxf4#
- 2.exf4#
- 1...Sge6
- 2.Qd5#
- 2.exf4#
- 1...d3
- 2.Qd5#
- 2.Qxf4#
- 1...Sxf3!
- threat
- 1.Qc4?
- threat
- 2.Qd5#
- 2.Qxd4#
- 2.exd4#
- 1...Ke4
- 2.Qd5#
- 2.Qxd4#
- 2.exd4#
- 1...dxe3
- 2.Qd5#
- 1...Sb3
- 2.Qd5#
- 2.exd4#
- 1...Sce6
- 2.Qd5#
- 2.exd4#
- 1...Sf3
- 2.Qd5#
- 2.exd4#
- 1...Sge6
- 2.Qd5#
- 2.exd4#
- 1...d3
- 2.Qd5#
- 2.Qd4#
- 2.Qxf4#
- 2.exf4#
- 1...f3
- 2.Qd5#
- 2.Qxd4#
- 1...fxe3!
- threat
- 1.Qg4?
- threat
- 2.Qf5#
- 2.Qxf4#
- 2.exf4#
- 1...Ke4
- 2.Qf5#
- 2.Qxf4#
- 2.exf4#
- 1...fxe3
- 2.Qf5#
- 1...Sd3
- 2.Qf5#
- 2.exf4#
- 1...Sce6
- 2.Qf5#
- 2.exf4#
- 1...Sh3
- 2.Qf5#
- 2.exf4#
- 1...Sge6
- 2.Qf5#
- 2.exf4#
- 1...d3
- 2.Qf5#
- 2.Qxf4#
- 1...f3
- 2.Qf5#
- 2.Qxd4#
- 2.Qf4#
- 2.exd4#
- 1...dxe3!
- threat
- 1.Qb2?
- threat
- 2.Qxd4#
- 2.exd4#
- 1...Ke4
- 2.Qxd4#
- 2.exd4#
- 1...Sb3
- 2.exd4#
- 1...Sce6
- 2.exd4#
- 1...Sf3
- 2.exd4#
- 1...Sge6
- 2.exd4#
- 1...f3
- 2.Qxd4#
- 1...fxe3!
- threat
- 1.Qh2?
- threat
- 2.Qxf4#
- 2.exf4#
- 1...Ke4
- 2.Qxf4#
- 2.exf4#
- 1...Sd3
- 2.exf4#
- 1...Sce6
- 2.exf4#
- 1...Sh3
- 2.exf4#
- 1...Sge6
- 2.exf4#
- 1...d3
- 2.Qxf4#
- 1...dxe3!
- threat
- 1.Qd3?
- Keys
- 1.e4!
- 1...Scxe4
- 2.Qb5#
- 1...Sgxe4
- 2.Qh5#
- 1...d3
- 2.Qb2#
- 1...f3
- 2.Qh2#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Sa6
- 2.Sd3#
- 1...Sce6
- 2.Sd3#
- 1...Sd7
- 2.Sd3#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sge6
- 2.Sf3#
- 1...Sf7
- 2.Sf3#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Scxe4
- 1.e4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 18
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- P(a);OGATE,P_SPINP(a),XP(C)::QAR1(B)
- P(b);P_SPINP(b),XP(C)::QAR1(B)
- Refutation
- S(c);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- P(a);P_SPINP(a),XP(C)::QAR1(B)
- P(b);OGATE,P_SPINP(b),XP(C)::QAR1(B)
- Refutation
- S(e);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- P(a);P_SPINP(a),XP(C)::QAR1(B)
- Refutation
- P(b);P_SPINP(b),XP(C)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- P(b);P_SPINP(b),XP(C)::QAR1(B)
- Refutation
- P(a);P_SPINP(a),XP(C)
- Try
- Q(B);P_PINP(a)
- Threat
- DUALS(2)
- Vars
- S(c);::R(A)+P(C)DCHECK,XP(a)
- S(e);::R(A)+P(C)DCHECK,XP(a)
- P(b);::QAB1(B),XP(a)
- Refutation
- P(b);N_SPINP(a),P_SPINP(b),XP(C)
- Try
- Q(B);P_PINP(b)
- Threat
- DUALS(2)
- Vars
- S(c);::R(A)+P(C)DCHECK,XP(b)
- S(e);::R(A)+P(C)DCHECK,XP(b)
- P(a);::QAB1(B),XP(b)
- Refutation
- P(a);N_SPINP(b),P_SPINP(a),XP(C)
- Try
- Actual
- P(C);
- Vars
- S(c);OGATEB,P_SPINS(c),XP(C)::QAR(B)
- S(e);OGATEB,P_SPINS(e),XP(C)::QAR(B)
- P(a);OGATEB::QAB(B)
- P(b);OGATEB::QAB(B)
- S(c);N_GUARD::S(D)
- S(c);N_GUARD::S(D),XS(c)
- S(e);N_GUARD::S(E),XS(e)
- S(e);N_GUARD::S(E)
- P(f);N_GUARD::S(D)
- P(g);N_GUARD::S(E)
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