MESON Chess Problem Database
Problem Display
PID: 45018 (5Rb1/2p2n1p/R1n1BP1P/P3kN1K/1P2pN2/8/4P3/2B3Q1 w - - 0 1)
Laws, Benjamin Glover
The Chess Player's Chronicle (Sampson), 1882
#2
13 + 7
| 3316 | Chess Problem Text Book | 1887 |
| 56 | The Problemist | 1936 |
SOLUTION
- SOUND
- Sets
- 1...Kxf6
- 2.Qg7#
- 1...Sxb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sxa5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Scd8
- 2.Qd4#
- 1...Sg5
- 2.Qc5#
- 1...Sd6
- 2.Qc5#
- 1...Sxh6
- 2.Qc5#
- 1...Sfd8
- 2.Qc5#
- 1...Sh8
- 2.Qc5#
- 1...Kxf6
- Tries
- 1.Kh4?
- 1...Kxf6
- 2.Qg7#
- 1...Sxb4
- 2.Qd4#
- 1...Sxa5
- 2.Qd4#
- 1...Sxh6
- 2.Qc5#
- 1...Sd4
- 2.Qxd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Scd8
- 2.Qd4#
- 1...Sg5
- 2.Qc5#
- 1...Sd6
- 2.Qc5#
- 1...Sfd8
- 2.Qc5#
- 1...Sh8
- 2.Qc5#
- 1...e3!
- 1...Kxf6
- 1.Bb2+?
- 1...Kxf4
- 2.Qf2#
- 2.Qh2#
- 2.Qe3#
- 2.Qf1#
- 2.Qg3#
- 2.Qg4#
- 1...Sd4!
- 1...Kxf4
- 1.Bd2?
- 1...Kxf6
- 2.Qg7#
- 1...Sxb4
- 2.Qd4#
- 2.Qa1#
- 1...Sxa5
- 2.Qd4#
- 2.Qa1#
- 1...Sxh6
- 2.Qc5#
- 1...Sd4
- 2.Qxd4#
- 1...Sa7
- 2.Qd4#
- 2.Qa1#
- 1...Se7
- 2.Qd4#
- 2.Qa1#
- 1...Sb8
- 2.Qd4#
- 2.Qa1#
- 1...Scd8
- 2.Qd4#
- 2.Qa1#
- 1...Sg5
- 2.Qc5#
- 1...Sd6
- 2.Qc5#
- 1...Sfd8
- 2.Qc5#
- 1...Sh8
- 2.Qc5#
- 1...e3!
- 1...Kxf6
- 1.Rxc6?
- threat
- 2.Qd4#
- 1...Kxf6
- 2.Bb2#
- 2.Qd4#
- 2.Qg7#
- 1...e3!
- threat
- 1.Ra7?
- 1...Kxf6
- 2.Qg7#
- 1...Sxb4
- 2.Qd4#
- 1...Sxa5
- 2.Qd4#
- 1...Sxa7
- 2.Qd4#
- 1...Sxh6
- 2.Qc5#
- 1...Sd4
- 2.Qxd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Scd8
- 2.Qd4#
- 1...Sg5
- 2.Qc5#
- 1...Sd6
- 2.Qc5#
- 1...Sfd8
- 2.Qc5#
- 1...Sh8
- 2.Qc5#
- 1...e3!
- 1...Kxf6
- 1.Raa8?
- 1...Kxf6
- 2.Qg7#
- 1...Sxb4
- 2.Qd4#
- 1...Sxa5
- 2.Qd4#
- 1...Sxh6
- 2.Qc5#
- 1...Sd4
- 2.Qxd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Scd8
- 2.Qd4#
- 1...Sg5
- 2.Qc5#
- 1...Sd6
- 2.Qc5#
- 1...Sfd8
- 2.Qc5#
- 1...Sh8
- 2.Qc5#
- 1...e3!
- 1...Kxf6
- 1.Rxf7?
- threat
- 2.Qc5#
- 1...Sxb4
- 2.Qd4#
- 1...e3
- 2.Qxe3#
- 1...Sd4
- 2.Qxd4#
- 1...Se7
- 2.Qd4#
- 1...Bxf7+!
- threat
- 1.Qe3?
- 1...Sxb4
- 2.Bb2#
- 2.Qd4#
- 2.Qc3#
- 1...Sxa5
- 2.Bb2#
- 2.Qd4#
- 2.Qc3#
- 1...Sxh6
- 2.Qc5#
- 1...Sd4
- 2.Qxd4#
- 1...Sa7
- 2.Bb2#
- 2.Qd4#
- 2.Qc3#
- 1...Se7
- 2.Bb2#
- 2.Qd4#
- 2.Qc3#
- 1...Sb8
- 2.Bb2#
- 2.Qd4#
- 2.Qc3#
- 1...Scd8
- 2.Bb2#
- 2.Qd4#
- 2.Qc3#
- 1...Sg5
- 2.Qc5#
- 1...Sd6
- 2.Qc5#
- 1...Sfd8
- 2.Qc5#
- 1...Sh8
- 2.Qc5#
- 1...Kxf6!
- 1...Sxb4
- 1.b5?
- 1...Kxf6
- 2.Qg7#
- 1...Sxa5
- 2.Qd4#
- 1...Sxh6
- 2.Qc5#
- 1...Sd4
- 2.Qxd4#
- 1...Sb4
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Scd8
- 2.Qd4#
- 1...Sg5
- 2.Qc5#
- 1...Sd6
- 2.Qc5#
- 1...Sfd8
- 2.Qc5#
- 1...Sh8
- 2.Qc5#
- 1...e3!
- 1...Kxf6
- 1.Kh4?
- Keys
- 1.Se3!
- 1...Kd4
- 2.Bb2#
- 1...Kxf4
- 2.Qh2#
- 1...Kd6
- 2.Sc4#
- 1...Kxf6
- 2.Qg5#
- 1...Sxb4
- 2.Sg4#
- 1...Sxa5
- 2.Sg4#
- 1...Sxh6
- 2.Sc4#
- 1...Sd4
- 2.Sg4#
- 1...Sa7
- 2.Sg4#
- 1...Se7
- 2.Sg4#
- 1...Sb8
- 2.Sg4#
- 1...Scd8
- 2.Sg4#
- 1...Sg5
- 2.Sc4#
- 1...Sd6
- 2.Sg4#
- 1...Sfd8
- 2.Sc4#
- 1...Sh8
- 2.Sc4#
- 1...Kd4
- 1.Se3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 13
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(b);OGATEB,P_SPINS(e),S_FLIGHT,XP(K)::QAB1(B)
- S(c);N_GUARD,XP(D)::QAB1(B)
- S(c);N_GUARD::QAB1(B),XS(c)
- S(c);N_GUARD,XP(F)::QAB1(B)
- S(c);N_GUARD::QAB1(B)
- S(e);::QAR2(B)
- S(e);XP(L)::QAR2(B)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- K(b);OGATEB,P_SPINS(e),S_FLIGHT,XP(K)::QAB1(B)
- S(c);N_GUARD,XP(D)::QAB1(B)
- S(c);N_GUARD,XP(F)::QAB1(B)
- S(e);XP(L)::QAR2(B)
- S(c);N_GUARD::QAB1(B),XS(c)
- S(c);N_GUARD::QAB1(B)
- S(e);::QAR2(B)
- Refutation
- P(a);
- Try
- B(A);CHECK
- Refutation
- S(c);P_SPINS(c)
- Try
- B(A);
- Vars
- K(b);OGATEB,P_SPINS(e),S_FLIGHT,XP(K)::QAB1(B)
- S(e);XP(L)::QAR2(B)
- S(c);N_GUARD::QAB1(B),XS(c)
- S(e);::QAR2(B)
- Refutation
- P(a);
- Try
- R(I);XS(c)
- Threat
- QAB1(B)
- Refutation
- P(a);
- Try
- R(I);
- Vars
- K(b);OGATEB,P_SPINS(e),S_FLIGHT,XP(K)::QAB1(B)
- S(c);N_GUARD,XP(D)::QAB1(B)
- S(c);N_GUARD,XP(F)::QAB1(B)
- S(c);N_GUARD,XR(I)::QAB1(B)
- S(e);XP(L)::QAR2(B)
- S(c);N_GUARD::QAB1(B),XS(c)
- S(c);N_GUARD::QAB1(B)
- S(e);::QAR2(B)
- Refutation
- P(a);
- Try
- R(I);
- Vars
- K(b);OGATEB,P_SPINS(e),S_FLIGHT,XP(K)::QAB1(B)
- S(c);N_GUARD,XP(D)::QAB1(B)
- S(c);N_GUARD,XP(F)::QAB1(B)
- S(e);XP(L)::QAR2(B)
- S(c);N_GUARD::QAB1(B),XS(c)
- S(c);N_GUARD::QAB1(B)
- S(e);::QAR2(B)
- Refutation
- P(a);
- Try
- R(M);XS(e)
- Threat
- QAR2(B)
- Vars
- S(c);N_GUARD,XP(D)::QAB1(B)
- P(a);OGATEB::QAR2(B),XP(a)
- S(c);N_GUARD::QAB1(B),XS(c)
- S(c);N_GUARD::QAB1(B)
- Refutation
- B(g);CHECK,XR(M)
- Try
- Q(B);P_PINP(a)
- Vars
- S(e);XP(L)::QAR2(B)
- S(c);N_GUARD::QAB1(B),XS(c)
- S(e);::QAR2(B)
- Refutation
- K(b);N_SPINP(a),P_SPINS(e),S_FLIGHT,XP(K)
- Try
- P(D);
- Vars
- K(b);OGATEB,P_SPINS(e),S_FLIGHT,XP(K)::QAB1(B)
- S(c);N_GUARD,XP(F)::QAB1(B)
- S(e);XP(L)::QAR2(B)
- S(c);N_GUARD::QAB1(B),XS(c)
- S(c);N_GUARD::QAB1(B)
- S(e);::QAR2(B)
- Refutation
- P(a);
- Try
- Actual
- S(G);
- Vars
- K(b);S_FLIGHT::B(A)
- K(b);OGATEB,S_FLIGHT,XS(E)::QAB(B)
- K(b);P_SPINS(c),S_FLIGHT::S(G)
- K(b);P_SPINS(e),S_FLIGHT,XP(K)::QAB1(B)
- S(c);XP(D)::S(G)
- S(c);XP(F)::S(G)
- S(e);XP(L)::S(G)
- S(c);::S(G)
- S(e);::S(G)
- S(e);SBLOCK::S(G)
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