MESON Chess Problem Database
Problem Display
PID: 4767 (2b1B3/1p5p/1K3pPn/P4kp1/4RN2/1p6/1r1PQ1P1/B4N1n w - - 0 1)
Laws, Benjamin Glover
1st Prize, The Schoolmaster, 1890
#2
11 + 10
| 3571 | An English Bohemian | 1933 |
SOLUTION
- SOUND
- Sets
- 1...Bd7
- 2.Bxd7#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sf7
- 2.g4#
- 1...Sg8
- 2.g4#
- 1...hxg6
- 2.Bxg6#
- 1...Bd7
- Tries
- 1.Sh3?
- threat
- 2.Qf3#
- 1...g4
- 2.Rf4#
- 1...Sf7!
- threat
- 1.Sd5?
- threat
- 2.Se7#
- 2.Qf3#
- 1...Sf7
- 2.Se7#
- 1...Sg8
- 2.Qf3#
- 2.Qg4#
- 2.g4#
- 1...g4!
- threat
- 1.Se6?
- threat
- 2.Sd4#
- 2.Sg7#
- 2.Qf3#
- 1...Rxd2
- 2.Sg7#
- 2.Qf3#
- 1...Bxe6
- 2.Qf3#
- 1...g4
- 2.Rf4#
- 1...Sf7!
- threat
- 1.Ra4?
- 1...Rxd2
- 2.Se3#
- 1...hxg6
- 2.Bxg6#
- 1...g4
- 2.Qb5#
- 1...Rb1
- 2.Se3#
- 1...Ra2
- 2.Se3#
- 1...Rc2
- 2.Se3#
- 1...Be6
- 2.Qxe6#
- 1...Bd7
- 2.Bxd7#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sg4
- 2.Qe4#
- 1...Sf7
- 2.g4#
- 1...Sg8
- 2.g4#
- 1...gxf4!
- 1...Rxd2
- 1.Rc4?
- 1...Rxd2
- 2.Se3#
- 1...gxf4
- 2.Rc5#
- 1...hxg6
- 2.Bxg6#
- 1...Rb1
- 2.Se3#
- 1...Ra2
- 2.Se3#
- 1...Rc2
- 2.Se3#
- 1...Be6
- 2.Qxe6#
- 1...Bd7
- 2.Bxd7#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sg4
- 2.Qe4#
- 1...Sf7
- 2.g4#
- 1...Sg8
- 2.g4#
- 1...g4!
- 1...Rxd2
- 1.Re5+?
- 1...Kxf4
- 2.Qe4#
- 1...fxe5!
- 1...Kxf4
- 1.Qf3?
- threat
- 2.Se3#
- 2.Se2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Se6#
- 1...gxf4
- 2.Qxf4#
- 1...Sg4
- 2.Se2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Se6#
- 1...Be6
- 2.Se3#
- 2.Se2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Sxe6#
- 1...Sf7
- 2.Se3#
- 2.g4#
- 1...g4!
- threat
- 1.Sh3?
- Keys
- 1.Rb4!
- 1...Rxd2
- 2.Se3#
- 1...gxf4
- 2.Rb5#
- 1...hxg6
- 2.Bxg6#
- 1...g4
- 2.Qb5#
- 1...Rb1
- 2.Se3#
- 1...Ra2
- 2.Se3#
- 1...Rc2
- 2.Se3#
- 1...Be6
- 2.Qxe6#
- 1...Bd7
- 2.Bxd7#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sg4
- 2.Qe4#
- 1...Sf7
- 2.g4#
- 1...Sg8
- 2.g4#
- 1...Rxd2
- 1.Rb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- B(j);N_GUARD::B(K),XB(j)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(g);N_GUARD::P(E)
- P(i);OGATE,XP(J)::B(K),XP(i)
- Tries
- Try
- S(G);
- Threat
- QAR2(D)
- Vars
- P(e);N_GUARD::R1(F)
- Refutation
- S(g);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- S(g);::S(G)
- Refutation
- P(e);
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- B(j);XS(G)::QAR2(D)
- P(e);N_GUARD::R1(F)
- Refutation
- S(g);
- Try
- R(F);
- Vars
- R(b);XP(C)::S(B)
- P(i);OGATE,XP(J)::B(K),XP(i)
- P(e);SBLOCK::QAR(D)
- R(b);::S(B)
- B(j);N_GUARD::QAB1(D),XB(j)
- B(j);N_GUARD::B(K),XB(j)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(g);SBLOCK::QAB1(D)
- S(g);N_GUARD::P(E)
- Refutation
- P(e);XS(G)
- Try
- R(F);
- Vars
- R(b);XP(C)::S(B)
- P(e);SBLOCK,XS(G)::R(F)
- P(i);OGATE,XP(J)::B(K),XP(i)
- R(b);::S(B)
- B(j);N_GUARD::QAB1(D),XB(j)
- B(j);N_GUARD::B(K),XB(j)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(g);SBLOCK::QAB1(D)
- S(g);N_GUARD::P(E)
- Refutation
- P(e);
- Try
- R(F);CHECK
- Vars
- K(d);P-FLIGHT,XS(G)::QAR1(D)
- Refutation
- P(f);XR(F)
- Try
- Q(D);
- Threat
- DUALS(7)
- Vars
- P(e);OGATE,P_SPINP(e),XS(G)::QAR1(D),XP(e)
- Refutation
- P(e);
- Try
- Actual
- R(F);
- Vars
- R(b);XP(C)::S(B)
- P(e);SBLOCK,XS(G)::R(F)
- P(i);OGATE,XP(J)::B(K),XP(i)
- P(e);SBLOCK::QAR(D)
- R(b);::S(B)
- B(j);N_GUARD::QAB1(D),XB(j)
- B(j);N_GUARD::B(K),XB(j)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(g);SBLOCK::QAB1(D)
- S(g);N_GUARD::P(E)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).