MESON Chess Problem Database
Problem Display
PID: 59985 (1B6/1ppPP3/1Pk5/3p2q1/KPNRR3/5B2/2Q4b/8 w - - 0 1)
Barnes, Barry Peter
6th HM., The Problemist, 1970
#2
11 + 6
| 3751 | FIDE Album (1968-1970) | 1977 |
SOLUTION
- SOUND
- Sets
- 1...Kxd7
- 2.e8Q#
- 1...dxc4
- 2.Re6#
- 1...dxe4
- 2.d8S#
- 1...cxb6
- 2.Se5#
- 1...Kxd7
- Tries
- 1.Sd6+?
- 1...Kxd6
- 2.Qxc7#
- 2.d8Q#
- 2.d8R#
- 1...Kxd7
- 2.Qxc7#
- 1...Kxb6!
- 1...Kxd6
- 1.Bxc7?
- threat
- 2.Se5#
- 1...Kxd7
- 2.e8Q#
- 1...dxc4
- 2.Re5#
- 2.Re6#
- 2.d8S#
- 1...Qe5
- 2.Sxe5#
- 1...Be5
- 2.Sxe5#
- 1...Bxc7!
- threat
- 1.Re6+?
- 1...Kxd7
- 2.e8Q#
- 1...Bd6!
- 1...Kxd7
- 1.b5+?
- 1...Kxd7
- 2.e8Q#
- 1...Kc5!
- 1...Kxd7
- 1.e8Q?
- threat
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...dxc4
- 2.Re6#
- 1...dxe4
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...cxb6
- 2.Sb2#
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Sa5#
- 2.Se5#
- 2.Sd6#
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qc1
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qd2
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qe3
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qf4
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qh4
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qf6
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qh6
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qg1
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qg2
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qg3
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Bg1
- 2.Re6#
- 2.Qe6#
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Bg3
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Bf4
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Be5
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Bd6
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qd8!
- threat
- 1.e8B?
- threat
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...dxc4
- 2.Re6#
- 1...dxe4
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...cxb6
- 2.Sb2#
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Sa5#
- 2.Se5#
- 2.Sd6#
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qc1
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qd2
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qe3
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qf4
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qh4
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qf6
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qh6
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qg1
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qg2
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qg3
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Bg1
- 2.Re6#
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Bg3
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Bf4
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Be5
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Bd6
- 2.d8Q#
- 2.d8S#
- 2.d8B#
- 2.d8R#
- 1...Qd8!
- threat
- 1.Sd6+?
- Keys
- 1.Ka5!
- threat
- 2.Qa4#
- 1...dxc4+
- 2.Re5#
- 1...dxe4+
- 2.Se5#
- 1...cxb6+
- 2.Sxb6#
- 1...Kxd7
- 2.e8Q#
- threat
- 1.Ka5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(d);P_SPINP(b),S_FLIGHT,XP(I)::P=Q
- P(b);P_SPINP(b),XS(E)::B(B)+R(G),DCHECK
- P(b);P_SPINP(b),XR(G)::P=S
- P(f);SBLOCK,XP(H)::QAR(A)+S(E),DCHECK
- Tries
- Try
- S(E);CHECK
- Vars
- K(d);OGATE,S_FLIGHT,XP(I)::QAR1(A),XP(f)
- Refutation
- K(d);P-FLIGHT,XP(H)
- Try
- B(K);XP(f)
- Threat
- QAR(A)+S(E),DCHECK
- Vars
- K(d);P_SPINP(b),S_FLIGHT,XP(I)::P=Q
- Q(c);::QAR(A)+S(E),DCHECK,XQ(c)
- B(a);::QAR(A)+S(E),DCHECK,XB(a)
- Refutation
- B(a);XB(K)
- Try
- R(G);CHECK,P_PINP(b)
- Vars
- K(d);S_FLIGHT,XP(I)::P=Q
- Refutation
- B(a);P_SPINB(a)
- Try
- P(D);CHECK
- Vars
- K(d);P_SPINP(b),S_FLIGHT,XP(I)::P=Q
- Refutation
- K(d);P-FLIGHT
- Try
- P(J);
- Threat
- DUALS(4)
- Vars
- P(b);P_SPINP(b),XS(E)::B(B)+R(G),DCHECK
- Refutation
- Q(c);
- Try
- P(J);
- Threat
- DUALS(4)
- Vars
- P(b);P_SPINP(b),XS(E)::B(B)+R(G),DCHECK
- Refutation
- Q(c);
- Try
- Actual
- K(C);P-FLIGHT
- Threat
- QAB(A)
- Vars
- P(b);CHECK,OGATEB,P_SPINP(b),XS(E)::B(B)+R(G)
- P(b);CHECK,P_SPINP(b),XR(G)::QAR(A)+S(E),DCHECK
- P(f);CHECK,XP(H)::QAR(A)+S(E),XP(f)
- K(d);P_SPINP(b),S_FLIGHT,XP(I)::P=Q
Developed and maintained by Brian Stephenson.
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