MESON Chess Problem Database
Problem Display
PID: 154565 (8/3rPp2/1p2R1p1/nKPkB3/pP4B1/P4b1N/N1Q1p1n1/3rb3 w - - 0 1)
Lawton, Howard
Sheffield Guardian (The), 1911
(First published on Fri Apr 28 1911)
#2
11 + 12
| 15239 | Valois Notebooks | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qd3#
- 1...Rb1
- 2.Qd3#
- 1...Rc1
- 2.Qd3#
- 1...Rd2
- 2.Sc3#
- 1...Rd3
- 2.Qxd3#
- 1...Rd8
- 2.exd8Q#
- 2.exd8R#
- 1...Bd2
- 2.Qd3#
- 1...Bf2
- 2.Sc3#
- 1...Bc3
- 2.Sxc3#
- 1...Bg3
- 2.Sc3#
- 1...Bxb4
- 2.Sxb4#
- 1...Bh4
- 2.Sc3#
- 1...Se3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...Sb3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sc6
- 2.Qc4#
- 1...Sb7
- 2.Qc4#
- 1...Ra1
- Tries
- 1.Qd2+?
- 1...Ke4
- 2.Sc3#
- 2.Sg5#
- 1...Rxd2
- 2.Sc3#
- 1...Bxd2!
- 1...Ke4
- 1.e8Q?
- threat
- 2.Bxf3#
- 2.Qxd7#
- 1...Bxg4
- 2.Qxd7#
- 1...fxe6
- 2.Qxe6#
- 1...Rd3
- 2.Qxd3#
- 1...Rd4
- 2.Qxd7#
- 1...Rd6
- 2.Bxf3#
- 2.Rxd6#
- 1...Ra7
- 2.Bxf3#
- 2.Rd6#
- 1...Rb7
- 2.Bxf3#
- 2.Rd6#
- 1...Rc7
- 2.Bxf3#
- 2.Rd6#
- 1...Rd8
- 2.Bxf3#
- 2.Qxd8#
- 1...Be4
- 2.Qxd7#
- 1...Sh4
- 2.Sf4#
- 2.Qxd7#
- 1...Sc4
- 2.Bxf3#
- 2.Qxc4#
- 1...Sb7
- 2.Bxf3#
- 2.Qc4#
- 1...Re7!
- threat
- 1.Qd2+?
- Keys
- 1.Bf6!
- 1...Rxe7
- 2.Rd6#
- 1...Bxb4
- 2.Sxb4#
- 1...Bxg4
- 2.Qe4#
- 1...bxc5
- 2.Qxc5#
- 1...fxe6
- 2.Bxf3#
- 1...Rd4
- 2.Re5#
- 1...Ra1
- 2.Qd3#
- 1...Rb1
- 2.Qd3#
- 1...Rc1
- 2.Qd3#
- 1...Rd2
- 2.Sc3#
- 1...Rd3
- 2.Qxd3#
- 1...Rd6
- 2.Rxd6#
- 1...Ra7
- 2.Rd6#
- 1...Rb7
- 2.Rd6#
- 1...Rc7
- 2.Rd6#
- 1...Rd8
- 2.exd8Q#
- 2.exd8R#
- 1...Bd2
- 2.Qd3#
- 1...Bf2
- 2.Sc3#
- 1...Bc3
- 2.Sxc3#
- 1...Bg3
- 2.Sc3#
- 1...Bh4
- 2.Sc3#
- 1...Be4
- 2.Qxe4#
- 1...Se3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...Sb3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sc6
- 2.Qc4#
- 1...Sb7
- 2.Qc4#
- 1...g5
- 2.Qf5#
- 1...Rxe7
- 1.Bf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::QAR2(B)
- R(a);N_GUARD,P_PINP(E)::QAR2(B)
- R(a);S_CUTB(b)::S(A)
- R(a);N_GUARD::QAR2(B),XR(a)
- R(k);OGATE::PXR(k)=Q
- B(b);S_CUTR(a)::QAR2(B)
- B(b);N_GUARD::S(A)
- B(b);N_GUARD::S(A),XB(b)
- B(b);XP(E)::S(A),XB(b)
- S(d);N_GUARD::S(D)
- S(d);N_GUARD::S(D),XS(d)
- S(g);N_GUARD::QAB1(B)
- S(g);N_GUARD::QAB1(B),XS(g)
- Tries
- Try
- Q(B);CHECK
- Vars
- R(a);XQ(B)::S(A)
- Refutation
- B(b);XQ(B)
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- B(e);XB(F)::QAR2(K),XR(k)
- P(l);OGATE,XR(J)::QAB1(K),XP(l)
- R(a);N_GUARD::QAR2(B),XR(a)
- R(a);::QAR2(K),XR(k)
- B(e);::QAR2(K),XR(k)
- Refutation
- R(k);
- Try
- Actual
- B(I);
- Vars
- R(k);N_GUARD,XP(K)::R1(J)
- B(b);XP(E)::S(A),XB(b)
- B(e);N_GUARD,XB(F)::QAB1(B)
- P(i);OGATE,XP(H)::QAR1(B),XP(i)
- P(l);SBLOCK,XR(J)::B(F),XB(e)
- R(a);SBLOCK::R1(J)
- R(a);N_GUARD::QAR2(B)
- R(a);N_GUARD,P_PINP(E)::QAR2(B)
- R(a);S_CUTB(b)::S(A)
- R(a);N_GUARD::QAR2(B),XR(a)
- R(k);N_GUARD::R1(J),XR(k)
- R(k);N_GUARD::R1(J)
- R(k);OGATE::PXR(k)=Q
- B(b);S_CUTR(a)::QAR2(B)
- B(b);N_GUARD::S(A)
- B(b);N_GUARD::S(A),XB(b)
- B(e);N_GUARD::QAB1(B),XB(e)
- S(d);N_GUARD::S(D)
- S(d);N_GUARD::S(D),XS(d)
- S(g);N_GUARD::QAB1(B)
- S(g);N_GUARD::QAB1(B),XS(g)
- P(j);N_GUARD::QAR2(B)
Developed and maintained by Brian Stephenson.
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