MESON Chess Problem Database
Problem Display
PID: 208903 (8/1P4p1/1RP3n1/1P1R2p1/1K2k1N1/1n3qP1/1Q4B1/8 w - - 0 1)
Ballantine, William A
American Chess Journal, 1876
#2
10 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qxg2
- 2.Qxg2#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sf4
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Qxg2
- Tries
- 1.Sf2+?
- 1...Ke3
- 2.Rd3#
- 1...Kxd5!
- 1...Ke3
- 1.Re5+?
- 1...Kd3
- 2.Qc3#
- 1...Sxe5!
- 1...Kd3
- 1.Ra6?
- 1...Qxg2
- 2.Qxg2#
- 1...Sd4
- 2.Qxd4#
- 1...Se5
- 2.Qxe5#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sf4
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Kxd5!
- 1...Qxg2
- 1.Qc3?
- threat
- 2.Bxf3#
- 2.Qd3#
- 2.Qxf3#
- 1...Qxg2
- 2.Qd3#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...Sc1
- 2.Bxf3#
- 2.Qd4#
- 2.Qxf3#
- 2.Qc4#
- 1...Sd2
- 2.Qd4#
- 2.Qd3#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Bxf3#
- 2.Qd4#
- 2.Qxf3#
- 2.Qc4#
- 1...Sf4
- 2.Bxf3#
- 2.Re5#
- 2.Qe5#
- 2.Qxf3#
- 1...Sh4
- 2.Re5#
- 2.Qe5#
- 2.Qd3#
- 1...Kxd5!
- threat
- 1.Qf6?
- threat
- 2.Bxf3#
- 2.Qxf3#
- 2.Qf5#
- 1...Kxd5
- 2.Bxf3#
- 1...Qxg2
- 2.Qf5#
- 1...Sd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Sd2
- 2.Rd4#
- 2.Qd4#
- 2.Qf5#
- 1...Sf4
- 2.Qe5#
- 2.Qf5#
- 1...Sh4
- 2.Qe5#
- 2.Qe6#
- 1...Se5
- 2.Qxe5#
- 1...Se7
- 2.Bxf3#
- 2.Qe5#
- 2.Qxf3#
- 2.Qe6#
- 1...gxf6!
- threat
- 1.Qd2?
- threat
- 2.Sf2#
- 2.Qd3#
- 1...Qxg2
- 2.Qxg2#
- 2.Qd3#
- 1...Sd4
- 2.Qxd4#
- 1...Se5
- 2.Rxe5#
- 1...Sc1
- 2.Sf2#
- 2.Qd4#
- 1...Sc5
- 2.Sf2#
- 2.Qd4#
- 1...Sf4
- 2.Sf2#
- 2.Re5#
- 1...Sxd2!
- threat
- 1.Qxb3?
- threat
- 2.Sf2#
- 2.Bxf3#
- 2.Qc4#
- 2.Qd3#
- 2.Qxf3#
- 1...Qxg2
- 2.Qd3#
- 1...Sf4
- 2.Sf2#
- 2.Bxf3#
- 2.Qc4#
- 2.Qxf3#
- 1...Sh4
- 2.Sf2#
- 2.Qc4#
- 2.Qd3#
- 1...Se5!
- threat
- 1.b8Q?
- 1...Qxg2
- 2.Qxg2#
- 1...Sd4
- 2.Qxd4#
- 1...Se5
- 2.Q2xe5#
- 2.Q8xe5#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sf4
- 2.Q2e5#
- 2.Q8e5#
- 1...Sh4
- 2.Q2e5#
- 2.Q8e5#
- 1...Se7
- 2.Q2e5#
- 2.Q8e5#
- 1...Sf8
- 2.Q2e5#
- 2.Q8e5#
- 1...Sh8
- 2.Q2e5#
- 2.Q8e5#
- 1...Kxd5!
- 1...Qxg2
- 1.b8S?
- 1...Qxg2
- 2.Qxg2#
- 1...Sd4
- 2.Qxd4#
- 1...Se5
- 2.Qxe5#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sf4
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Kxd5!
- 1...Qxg2
- 1.b8B?
- 1...Qxg2
- 2.Qxg2#
- 1...Sd4
- 2.Qxd4#
- 1...Se5
- 2.Qxe5#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sf4
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Kxd5!
- 1...Qxg2
- 1.b8R?
- 1...Qxg2
- 2.Qxg2#
- 1...Sd4
- 2.Qxd4#
- 1...Se5
- 2.Qxe5#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sf4
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Kxd5!
- 1...Qxg2
- 1.Sf2+?
- Keys
- 1.c7!
- 1...Kxd5
- 2.Bxf3#
- 1...Qxg2
- 2.Qxg2#
- 1...Sd4
- 2.Qxd4#
- 1...Se5
- 2.Qxe5#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sf4
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Kxd5
- 1.c7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(b);N_SPINQ(b),OGATE,XB(B)::QAB(A),XQ(b)
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- S(e);N_GUARD::QAR1(A)
- S(e);N_GUARD::QAR1(A),XS(e)
- Tries
- Try
- S(E);CHECK
- Vars
- K(c);N_SPINQ(b),P-FLIGHT::R1(G)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- R(G);CHECK
- Vars
- K(c);N_SPINQ(b),S_FLIGHT::QAR1(A)
- Refutation
- S(e);XR(G)
- Try
- R(H);
- Vars
- Q(b);N_SPINQ(b),OGATE,XB(B)::QAB(A),XQ(b)
- S(a);N_GUARD::QAR1(A),XS(a)
- S(e);N_GUARD::QAR1(A),XS(e)
- S(a);N_GUARD::QAR1(A)
- S(e);N_GUARD::QAR1(A)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- Q(b);N_SPINQ(b),XB(B)::QAB1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- K(c);S_FLIGHT,XR(G)::B(B),XQ(b)
- Q(b);N_SPINQ(b),XB(B)::QAB1(A)
- S(e);N_GUARD::QAR1(A),XS(e)
- Refutation
- P(f);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD::QAR1(A),XS(a)
- S(e);N_GUARD::R1(G),XS(e)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);XS(a)
- Threat
- DUALS(5)
- Vars
- Q(b);N_SPINQ(b),XB(B)::QAB1(A)
- Refutation
- S(e);
- Try
- P(J);
- Vars
- Q(b);N_SPINQ(b),OGATE,XB(B)::QAB(A),XQ(b)
- S(a);N_GUARD::QAR1(A),XS(a)
- S(a);N_GUARD::QAR1(A)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- P(J);
- Vars
- Q(b);N_SPINQ(b),OGATE,XB(B)::QAB(A),XQ(b)
- S(a);N_GUARD::QAR1(A),XS(a)
- S(e);N_GUARD::QAR1(A),XS(e)
- S(a);N_GUARD::QAR1(A)
- S(e);N_GUARD::QAR1(A)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- P(J);
- Vars
- Q(b);N_SPINQ(b),OGATE,XB(B)::QAB(A),XQ(b)
- S(a);N_GUARD::QAR1(A),XS(a)
- S(e);N_GUARD::QAR1(A),XS(e)
- S(a);N_GUARD::QAR1(A)
- S(e);N_GUARD::QAR1(A)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- P(J);
- Vars
- Q(b);N_SPINQ(b),OGATE,XB(B)::QAB(A),XQ(b)
- S(a);N_GUARD::QAR1(A),XS(a)
- S(e);N_GUARD::QAR1(A),XS(e)
- S(a);N_GUARD::QAR1(A)
- S(e);N_GUARD::QAR1(A)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- Actual
- P(I);
- Vars
- K(c);S_FLIGHT,XR(G)::B(B),XQ(b)
- Q(b);N_SPINQ(b),OGATE,XB(B)::QAB(A),XQ(b)
- S(a);N_GUARD::QAR1(A),XS(a)
- S(e);N_GUARD::QAR1(A),XS(e)
- S(a);N_GUARD::QAR1(A)
- S(e);N_GUARD::QAR1(A)
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