MESON Chess Problem Database
Problem Display
PID: 193932 (2nb4/3K4/Np6/3kp3/rQb5/1p1B3R/1P6/6B1 w - - 0 1)
Fothergill, Percival Guy Laugham (PGLF)
Brisbane Courier, 1916
#2
7 + 8
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qxc4#
- 1...Ra2
- 2.Qxc4#
- 1...Ra3
- 2.Qxc4#
- 1...Rxb4
- 2.Sxb4#
- 1...Ra5
- 2.Qxc4#
- 1...Rxa6
- 2.Qxc4#
- 1...Bxd3
- 2.Rxd3#
- 1...Bb5+
- 2.Qxb5#
- 1...Bxa6
- 2.Be4#
- 1...Bh4
- 2.Sc7#
- 1...Bg5
- 2.Sc7#
- 1...Bf6
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- 1...Sd6
- 2.Qxd6#
- 1...Sa7
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- 1...b5
- 2.Qc5#
- 1...Ra1
- Tries
- 1.Bf2?
- 1...Bb5+
- 2.Qxb5#
- 1...Rxb4
- 2.Sxb4#
- 1...Rxa6
- 2.Qxc4#
- 1...Bxd3
- 2.Rxd3#
- 1...Bxa6
- 2.Be4#
- 1...Ra1
- 2.Qxc4#
- 1...Ra2
- 2.Qxc4#
- 1...Ra3
- 2.Qxc4#
- 1...Ra5
- 2.Qxc4#
- 1...Bh4
- 2.Sc7#
- 1...Bg5
- 2.Sc7#
- 1...Bf6
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- 1...Sd6
- 2.Qxd6#
- 1...Sa7
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- 1...b5
- 2.Qc5#
- 1...e4!
- 1...Bb5+
- 1.Rg3?
- 1...Bb5+
- 2.Qxb5#
- 1...Rxb4
- 2.Sxb4#
- 1...Rxa6
- 2.Qxc4#
- 1...Bxd3
- 2.Rxd3#
- 1...Bxa6
- 2.Be4#
- 1...Ra1
- 2.Qxc4#
- 1...Ra2
- 2.Qxc4#
- 1...Ra3
- 2.Qxc4#
- 1...Ra5
- 2.Qxc4#
- 1...Bh4
- 2.Sc7#
- 1...Bg5
- 2.Sc7#
- 1...Bf6
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- 1...Sd6
- 2.Qxd6#
- 1...Sa7
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- 1...b5
- 2.Qc5#
- 1...e4!
- 1...Bb5+
- 1.Rh5?
- 1...Bb5+
- 2.Qxb5#
- 1...Rxb4
- 2.Sxb4#
- 1...Rxa6
- 2.Qxc4#
- 1...Bxa6
- 2.Be4#
- 1...Ra1
- 2.Qxc4#
- 1...Ra2
- 2.Qxc4#
- 1...Ra3
- 2.Qxc4#
- 1...Ra5
- 2.Qxc4#
- 1...Bh4
- 2.Sc7#
- 1...Bg5
- 2.Sc7#
- 1...Bf6
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- 1...Sd6
- 2.Qxd6#
- 1...Sa7
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- 1...b5
- 2.Qc5#
- 1...Bxd3!
- 1...Bb5+
- 1.Qxa4?
- threat
- 2.Sb4#
- 2.Qc6#
- 2.Qxc4#
- 1...Bb5+
- 2.Qxb5#
- 1...Bxd3
- 2.Rxd3#
- 2.Qc6#
- 1...Bxa6
- 2.Be4#
- 2.Qc6#
- 2.Qe4#
- 1...Be7
- 2.Sc7#
- 2.Qc6#
- 2.Qxc4#
- 1...Sd6
- 2.Sb4#
- 2.Qc6#
- 1...Sa7
- 2.Sb4#
- 2.Qxc4#
- 1...Se7
- 2.Sb4#
- 2.Qxc4#
- 1...b5
- 2.Sb4#
- 1...e4!
- threat
- 1.Bf2?
- Keys
- 1.Rf3!
- 1...Bb5+
- 2.Qxb5#
- 1...Rxb4
- 2.Sxb4#
- 1...Rxa6
- 2.Qxc4#
- 1...Bxd3
- 2.Rxd3#
- 1...Bxa6
- 2.Be4#
- 1...e4
- 2.Rf5#
- 1...Ra1
- 2.Qxc4#
- 1...Ra2
- 2.Qxc4#
- 1...Ra3
- 2.Qxc4#
- 1...Ra5
- 2.Qxc4#
- 1...Bh4
- 2.Sc7#
- 1...Bg5
- 2.Sc7#
- 1...Bf6
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Be7
- 2.Sc7#
- 1...Sd6
- 2.Qxd6#
- 1...Sa7
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- 1...b5
- 2.Qc5#
- 1...Bb5+
- 1.Rf3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::QAB1(E),XB(c)
- R(b);XQ(E)::S(F),XR(b)
- R(b);N_GUARD,XS(F)::QAB1(E),XB(c)
- B(c);OGATE,XB(C)::R(D),XB(c)
- B(c);CHECK,N_GUARD::QAR2(E),XB(c)
- B(c);XS(F)::B(C)
- B(h);N_GUARD::S(F)
- B(h);N_GUARD::S(F),XB(h)
- S(g);N_GUARD::QAR1(E),XS(g)
- S(g);N_GUARD::QAR1(E)
- P(f);N_GUARD::QAR1(E)
- Tries
- Try
- B(A);
- Vars
- B(c);CHECK,N_GUARD::QAR2(E),XB(c)
- R(b);XQ(E)::S(F),XR(b)
- R(b);N_GUARD,XS(F)::QAB1(E),XB(c)
- B(c);OGATE,XB(C)::R(D),XB(c)
- B(c);XS(F)::B(C)
- R(b);N_GUARD::QAB1(E),XB(c)
- B(h);N_GUARD::S(F)
- B(h);N_GUARD::S(F),XB(h)
- S(g);N_GUARD::QAR1(E),XS(g)
- S(g);N_GUARD::QAR1(E)
- P(f);N_GUARD::QAR1(E)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- B(c);CHECK,N_GUARD::QAR2(E),XB(c)
- R(b);XQ(E)::S(F),XR(b)
- R(b);N_GUARD,XS(F)::QAB1(E),XB(c)
- B(c);OGATE,XB(C)::R(D),XB(c)
- B(c);XS(F)::B(C)
- R(b);N_GUARD::QAB1(E),XB(c)
- B(h);N_GUARD::S(F)
- B(h);N_GUARD::S(F),XB(h)
- S(g);N_GUARD::QAR1(E),XS(g)
- S(g);N_GUARD::QAR1(E)
- P(f);N_GUARD::QAR1(E)
- Refutation
- P(e);
- Try
- R(D);P_PINP(e)
- Vars
- B(c);CHECK,N_GUARD::QAR2(E),XB(c)
- R(b);XQ(E)::S(F),XR(b)
- R(b);N_GUARD,XS(F)::QAB1(E),XB(c)
- B(c);XS(F)::B(C)
- R(b);N_GUARD::QAB1(E),XB(c)
- B(h);N_GUARD::S(F)
- B(h);N_GUARD,N_SPINP(e)::S(F)
- B(h);N_GUARD::S(F),XB(h)
- S(g);N_GUARD::QAR1(E),XS(g)
- S(g);N_GUARD::QAR1(E)
- P(f);N_GUARD::QAR1(E)
- Refutation
- B(c);XB(C)
- Try
- Q(E);XR(b)
- Threat
- DUALS(3)
- Vars
- B(c);CHECK,N_GUARD::QAR2(E),XB(c)
- P(f);::S(F)
- Refutation
- P(e);
- Try
- Actual
- R(D);
- Vars
- B(c);CHECK,N_GUARD::QAR2(E),XB(c)
- R(b);XQ(E)::S(F),XR(b)
- R(b);N_GUARD,XS(F)::QAB1(E),XB(c)
- B(c);OGATE,XB(C)::R(D),XB(c)
- B(c);XS(F)::B(C)
- P(e);OGATEB::R(D)
- R(b);N_GUARD::QAB1(E),XB(c)
- B(h);N_GUARD::S(F)
- B(h);N_GUARD::S(F),XB(h)
- S(g);N_GUARD::QAR1(E),XS(g)
- S(g);N_GUARD::QAR1(E)
- P(f);N_GUARD::QAR1(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).