MESON Chess Problem Database
Problem Display
PID: 4810 (Bb2rN2/6Q1/5n2/1P2kr1b/K2R3p/5p1P/5N2/B1n5 w - - 0 1)
Heathcote, Godfrey
HM., The Schoolmaster, 1891
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Rg5
- 2.Qxg5#
- 1...Re6
- 2.Sd7#
- 1...Re7
- 2.Qxe7#
- 1...Rc8
- 2.Qe7#
- 1...Rd8
- 2.Qe7#
- 1...Rxf8
- 2.Qe7#
- 1...Bg4
- 2.Sxg4#
- 1...Bg6
- 2.Sg4#
- 1...Bf7
- 2.Sg4#
- 1...Bd6
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rg4#
- 2.Rxh4#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Sa2
- 2.Sd3#
- 1...Se2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Rg5
- Tries
- 1.Ka5?
- 1...Bc7+
- 2.Qxc7#
- 1...Rxf8
- 2.Qe7#
- 1...Rf4
- 2.Rd5#
- 1...Rg5
- 2.Qxg5#
- 1...Re6
- 2.Sd7#
- 1...Re7
- 2.Qxe7#
- 1...Rc8
- 2.Qe7#
- 1...Rd8
- 2.Qe7#
- 1...Bg4
- 2.Sxg4#
- 1...Bg6
- 2.Sg4#
- 1...Bf7
- 2.Sg4#
- 1...Bd6
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rg4#
- 2.Rxh4#
- 1...Ba7
- 2.Qc7#
- 1...Sa2
- 2.Sd3#
- 1...Se2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sb3+!
- 1...Bc7+
- 1.Bb2?
- 1...Rxf8
- 2.Qe7#
- 1...Rg5
- 2.Qxg5#
- 1...Bg4
- 2.Sxg4#
- 1...Re6
- 2.Sd7#
- 1...Re7
- 2.Qxe7#
- 1...Rc8
- 2.Qe7#
- 1...Rd8
- 2.Qe7#
- 1...Bg6
- 2.Sg4#
- 1...Bf7
- 2.Sg4#
- 1...Bd6
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rg4#
- 2.Rxh4#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Sa2
- 2.Sd3#
- 1...Se2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Rf4!
- 1...Rxf8
- 1.Bc3?
- 1...Rxf8
- 2.Qe7#
- 1...Rg5
- 2.Qxg5#
- 1...Bg4
- 2.Sxg4#
- 1...Re6
- 2.Sd7#
- 1...Re7
- 2.Qxe7#
- 1...Rc8
- 2.Qe7#
- 1...Rd8
- 2.Qe7#
- 1...Bg6
- 2.Sg4#
- 1...Bf7
- 2.Sg4#
- 1...Bd6
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rg4#
- 2.Rxh4#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Sa2
- 2.Sd3#
- 1...Se2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Rf4!
- 1...Rxf8
- 1.Bc6?
- 1...Rxf8
- 2.Qe7#
- 1...Rg5
- 2.Qxg5#
- 1...Bg4
- 2.Sxg4#
- 1...Re6
- 2.Sd7#
- 1...Re7
- 2.Qxe7#
- 1...Rc8
- 2.Qe7#
- 1...Rd8
- 2.Qe7#
- 1...Bg6
- 2.Sg4#
- 1...Bf7
- 2.Sg4#
- 1...Bd6
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rg4#
- 2.Rxh4#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Sa2
- 2.Sd3#
- 1...Se2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Rf4!
- 1...Rxf8
- 1.Bb7?
- 1...Rxf8
- 2.Qe7#
- 1...Rg5
- 2.Qxg5#
- 1...Bg4
- 2.Sxg4#
- 1...Re6
- 2.Sd7#
- 1...Re7
- 2.Qxe7#
- 1...Rc8
- 2.Qe7#
- 1...Rd8
- 2.Qe7#
- 1...Bg6
- 2.Sg4#
- 1...Bf7
- 2.Sg4#
- 1...Bd6
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rg4#
- 2.Rxh4#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Sa2
- 2.Sd3#
- 1...Se2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Rf4!
- 1...Rxf8
- 1.Qh6?
- threat
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rd5#
- 2.Rd7#
- 2.Rd8#
- 1...Rf4
- 2.Qxf4#
- 1...Rg5
- 2.Qxg5#
- 1...Rc8
- 2.Rd5#
- 1...Rd8
- 2.Rd5#
- 2.Rd7#
- 2.Rxd8#
- 1...Bd6
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 2.Rd5#
- 1...Ba7
- 2.Rd5#
- 1...Sa2
- 2.Sd3#
- 2.Rd5#
- 1...Se2
- 2.Sd3#
- 2.Rd5#
- 1...Sb3
- 2.Sd3#
- 2.Rd5#
- 1...Sd3
- 2.Sxd3#
- 2.Rxd3#
- 2.Rd5#
- 1...Se4
- 2.Sd7#
- 2.Rxe4#
- 2.Rd5#
- 1...Sd5
- 2.Sd7#
- 2.Re4#
- 2.Rxd5#
- 1...Sd7
- 2.Sxd7#
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 2.Rd5#
- 2.Rd6#
- 2.Rxd7#
- 1...Rxf8!
- threat
- 1.Qg3+?
- 1...Rf4
- 2.Qxf4#
- 1...hxg3!
- 1...Rf4
- 1.Qd7?
- threat
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rg4#
- 2.Rxh4#
- 1...Se4
- 2.Rxe4#
- 1...Sg4
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rxg4#
- 1...Sd5
- 2.Re4#
- 1...Bg4
- 2.Sg6#
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rxg4#
- 1...Rf4
- 2.Re4#
- 1...Rc8
- 2.Rc4#
- 2.Re4#
- 2.Qe6#
- 2.Qe7#
- 1...Ba7
- 2.Re4#
- 2.Qd6#
- 2.Qc7#
- 1...Sa2
- 2.Sd3#
- 2.Re4#
- 1...Se2
- 2.Sd3#
- 2.Re4#
- 1...Sb3
- 2.Sd3#
- 2.Re4#
- 1...Sd3
- 2.Sxd3#
- 2.Re4#
- 1...Sxd7!
- threat
- 1.b6?
- 1...Rxf8
- 2.Qe7#
- 1...Rg5
- 2.Qxg5#
- 1...Bg4
- 2.Sxg4#
- 1...Re6
- 2.Sd7#
- 1...Re7
- 2.Qxe7#
- 1...Rc8
- 2.Qe7#
- 1...Rd8
- 2.Qe7#
- 1...Bg6
- 2.Sg4#
- 1...Bf7
- 2.Sg4#
- 1...Bd6
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rg4#
- 2.Rxh4#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Sa2
- 2.Sd3#
- 1...Se2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Rf4!
- 1...Rxf8
- 1.Ka5?
- Keys
- 1.Ka3!
- 1...Bd6+
- 2.Rb4#
- 1...Rxf8
- 2.Qe7#
- 1...Rf4
- 2.Rd5#
- 1...Rg5
- 2.Qxg5#
- 1...Re6
- 2.Sd7#
- 1...Re7
- 2.Qxe7#
- 1...Rc8
- 2.Qe7#
- 1...Rd8
- 2.Qe7#
- 1...Bg4
- 2.Sxg4#
- 1...Bg6
- 2.Sg4#
- 1...Bf7
- 2.Sg4#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Sa2
- 2.Sd3#
- 1...Se2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Bd6+
- 1.Ka3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(e);OGATEB::QAR2(G),XR(e)
- R(i);SBLOCK::S(I)
- R(i);N_GUARD::QAR2(G),XR(i)
- R(i);N_GUARD::QAR2(G)
- R(i);N_GUARD,XS(I)::QAR2(G)
- B(f);N_GUARD::S(B),XB(f)
- B(f);N_GUARD::S(B)
- B(h);N_GUARD::QAB(G)
- B(h);N_GUARD::QAB(G),XB(h)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- B(h);CHECK,N_GUARD::QAB(G),XB(h)
- R(i);N_GUARD,XS(I)::QAR2(G)
- R(e);SBLOCK::B(A)+R(E),DCHECK
- R(e);OGATEB::QAR2(G),XR(e)
- R(i);SBLOCK::S(I)
- R(i);N_GUARD::QAR2(G),XR(i)
- R(i);N_GUARD::QAR2(G)
- B(f);N_GUARD::S(B),XB(f)
- B(f);N_GUARD::S(B)
- B(h);N_GUARD::QAB(G)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- S(a);CHECK
- Try
- B(A);
- Vars
- R(i);N_GUARD,XS(I)::QAR2(G)
- R(e);OGATEB::QAR2(G),XR(e)
- B(f);N_GUARD::S(B),XB(f)
- R(i);SBLOCK::S(I)
- R(i);N_GUARD::QAR2(G),XR(i)
- R(i);N_GUARD::QAR2(G)
- B(f);N_GUARD::S(B)
- B(h);N_GUARD::QAB(G)
- B(h);N_GUARD::QAB(G),XB(h)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- R(e);P_PINR(E)
- Try
- B(A);
- Vars
- R(i);N_GUARD,XS(I)::QAR2(G)
- R(e);OGATEB::QAR2(G),XR(e)
- B(f);N_GUARD::S(B),XB(f)
- R(i);SBLOCK::S(I)
- R(i);N_GUARD::QAR2(G),XR(i)
- R(i);N_GUARD::QAR2(G)
- B(f);N_GUARD::S(B)
- B(h);N_GUARD::QAB(G)
- B(h);N_GUARD::QAB(G),XB(h)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- R(e);P_PINR(E)
- Try
- B(H);
- Vars
- R(i);N_GUARD,XS(I)::QAR2(G)
- R(e);OGATEB::QAR2(G),XR(e)
- B(f);N_GUARD::S(B),XB(f)
- R(i);SBLOCK::S(I)
- R(i);N_GUARD::QAR2(G),XR(i)
- R(i);N_GUARD::QAR2(G)
- B(f);N_GUARD::S(B)
- B(h);N_GUARD::QAB(G)
- B(h);N_GUARD::QAB(G),XB(h)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- R(e);P_PINR(E)
- Try
- B(H);
- Vars
- R(i);N_GUARD,XS(I)::QAR2(G)
- R(e);OGATEB::QAR2(G),XR(e)
- B(f);N_GUARD::S(B),XB(f)
- R(i);SBLOCK::S(I)
- R(i);N_GUARD::QAR2(G),XR(i)
- R(i);N_GUARD::QAR2(G)
- B(f);N_GUARD::S(B)
- B(h);N_GUARD::QAB(G)
- B(h);N_GUARD::QAB(G),XB(h)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- R(e);P_PINR(E)
- Try
- Q(G);N_PINS(g)
- Threat
- DUALS(6)
- Vars
- R(e);N_GUARD,P_PINR(E)::QAB1(G),XR(e)
- R(e);OGATEB::QAR2(G),XR(e)
- R(i);::B(A)+R(E),DCHECK
- B(h);::B(A)+R(E),DCHECK
- Refutation
- R(i);XS(I)
- Try
- Q(G);CHECK,N_PINS(g)
- Vars
- R(e);N_GUARD,P_PINR(E),P_SPINR(e)::QAB1(G),XR(e)
- Refutation
- P(c);XQ(G)
- Try
- Q(G);N_PINS(g)
- Threat
- DUALS(5)
- Vars
- S(g);::B(A)+R(E),DCHECK,XS(g)
- S(g);::B(A)+R(E),DCHECK
- R(e);P_PINR(E)::B(A)+R(E),DCHECK
- Refutation
- S(g);XQ(G)
- Try
- P(F);
- Vars
- R(i);N_GUARD,XS(I)::QAR2(G)
- R(e);OGATEB::QAR2(G),XR(e)
- B(f);N_GUARD::S(B),XB(f)
- R(i);SBLOCK::S(I)
- R(i);N_GUARD::QAR2(G),XR(i)
- R(i);N_GUARD::QAR2(G)
- B(f);N_GUARD::S(B)
- B(h);N_GUARD::QAB(G)
- B(h);N_GUARD::QAB(G),XB(h)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- R(e);P_PINR(E)
- Try
- Actual
- K(D);P-FLIGHT
- Vars
- B(h);CHECK,SBLOCK::B(A)+R(E)
- R(i);N_GUARD,XS(I)::QAR2(G)
- R(e);SBLOCK::B(A)+R(E),DCHECK
- R(e);OGATEB::QAR2(G),XR(e)
- R(i);SBLOCK::S(I)
- R(i);N_GUARD::QAR2(G),XR(i)
- R(i);N_GUARD::QAR2(G)
- B(f);N_GUARD::S(B),XB(f)
- B(f);N_GUARD::S(B)
- B(h);N_GUARD::QAB(G)
- B(h);N_GUARD::QAB(G),XB(h)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
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).