MESON Chess Problem Database
Problem Display
PID: 194845 (4r3/2R1pp2/6N1/3P1kpP/2K2p2/2B5/2r1Q3/nB6 w - - 0 1)
Williams, Philip Hamilton
Western Daily Mercury, 1917
(First published on Fri Jun 29 1917)
#2
8 + 8
| 2681 | All Change Here! | 1919 |
| 15239 | Valois Notebooks | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Ra8
- 2.Sxe7#
- 1...Rb8
- 2.Sxe7#
- 1...Rc8
- 2.Sxe7#
- 1...Rd8
- 2.Sxe7#
- 1...Rf8
- 2.Sxe7#
- 1...Rg8
- 2.Sxe7#
- 1...Rh8
- 2.Sxe7#
- 1...Sb3
- 2.Bxc2#
- 1...f3
- 2.Qxf3#
- 1...g4
- 2.Qe5#
- 1...e5
- 2.Rxf7#
- 1...e6
- 2.Rxf7#
- 1...fxg6
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Ra8
- Tries
- 1.Kb4?
- 1...fxg6
- 2.Qe6#
- 1...f3
- 2.Qxf3#
- 1...g4
- 2.Qe5#
- 1...e5
- 2.Rxf7#
- 1...Ra8
- 2.Sxe7#
- 1...Rc8
- 2.Sxe7#
- 1...Rd8
- 2.Sxe7#
- 1...Rf8
- 2.Sxe7#
- 1...Rg8
- 2.Sxe7#
- 1...Rh8
- 2.Sxe7#
- 1...Sb3
- 2.Bxc2#
- 1...e6
- 2.Rxf7#
- 1...f6
- 2.Qe6#
- 1...Rb8+!
- 1...fxg6
- 1.Kb5?
- 1...fxg6
- 2.Qe6#
- 1...f3
- 2.Qxf3#
- 1...g4
- 2.Qe5#
- 1...e5
- 2.Rxf7#
- 1...Ra8
- 2.Sxe7#
- 1...Rc8
- 2.Sxe7#
- 1...Rd8
- 2.Sxe7#
- 1...Rf8
- 2.Sxe7#
- 1...Rg8
- 2.Sxe7#
- 1...Rh8
- 2.Sxe7#
- 1...Sb3
- 2.Bxc2#
- 1...e6
- 2.Rxf7#
- 1...f6
- 2.Qe6#
- 1...Rb8+!
- 1...fxg6
- 1.Kc5?
- 1...fxg6
- 2.Qe6#
- 1...f3
- 2.Qxf3#
- 1...g4
- 2.Qe5#
- 1...e5
- 2.Rxf7#
- 1...Ra8
- 2.Sxe7#
- 1...Rb8
- 2.Sxe7#
- 1...Rc8
- 2.Sxe7#
- 1...Rd8
- 2.Sxe7#
- 1...Rf8
- 2.Sxe7#
- 1...Rg8
- 2.Sxe7#
- 1...Rh8
- 2.Sxe7#
- 1...e6
- 2.Rxf7#
- 1...f6
- 2.Qe6#
- 1...Sb3+!
- 1...fxg6
- 1.Ra7?
- 1...fxg6
- 2.Qe6#
- 1...f3
- 2.Qxf3#
- 1...g4
- 2.Qe5#
- 1...e5
- 2.Rxf7#
- 1...Ra8
- 2.Sxe7#
- 1...Rb8
- 2.Sxe7#
- 1...Rd8
- 2.Sxe7#
- 1...Rf8
- 2.Sxe7#
- 1...Rg8
- 2.Sxe7#
- 1...Rh8
- 2.Sxe7#
- 1...Sb3
- 2.Bxc2#
- 1...e6
- 2.Rxf7#
- 1...f6
- 2.Qe6#
- 1...Rc8+!
- 1...fxg6
- 1.Rb7?
- 1...fxg6
- 2.Qe6#
- 1...f3
- 2.Qxf3#
- 1...g4
- 2.Qe5#
- 1...e5
- 2.Rxf7#
- 1...Ra8
- 2.Sxe7#
- 1...Rb8
- 2.Sxe7#
- 1...Rd8
- 2.Sxe7#
- 1...Rf8
- 2.Sxe7#
- 1...Rg8
- 2.Sxe7#
- 1...Rh8
- 2.Sxe7#
- 1...Sb3
- 2.Bxc2#
- 1...e6
- 2.Rxf7#
- 1...f6
- 2.Qe6#
- 1...Rc8+!
- 1...fxg6
- 1.Rd7?
- 1...fxg6
- 2.Qe6#
- 1...f3
- 2.Qxf3#
- 1...g4
- 2.Qe5#
- 1...e5
- 2.Rxf7#
- 1...Ra8
- 2.Sxe7#
- 1...Rb8
- 2.Sxe7#
- 1...Rd8
- 2.Sxe7#
- 1...Rf8
- 2.Sxe7#
- 1...Rg8
- 2.Sxe7#
- 1...Rh8
- 2.Sxe7#
- 1...Sb3
- 2.Bxc2#
- 1...e6
- 2.Rxf7#
- 1...f6
- 2.Qe6#
- 1...Rc8+!
- 1...fxg6
- 1.Kb4?
- Keys
- 1.Rc5!
- 1...fxg6
- 2.Qe6#
- 1...f3
- 2.Qxf3#
- 1...g4
- 2.Qe5#
- 1...e5
- 2.dxe5 ep#
- 1...Ra8
- 2.Sxe7#
- 1...Rb8
- 2.Sxe7#
- 1...Rc8
- 2.Sxe7#
- 1...Rd8
- 2.Sxe7#
- 1...Rf8
- 2.Sxe7#
- 1...Rg8
- 2.Sxe7#
- 1...Rh8
- 2.Sxe7#
- 1...Sb3
- 2.Bxc2#
- 1...e6
- 2.dxe6#
- 1...f6
- 2.Qe6#
- 1...fxg6
- 1.Rc5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(h);N_GUARD::S(G),XP(f)
- R(h);N_GUARD,P_PINR(H)::S(G),XP(f)
- S(a);N_GUARD::B(A),XR(b)
- P(c);::QAR2(B),XP(c)
- P(e);SBLOCK::QAR1(B)
- P(f);OGATE::R(H),XP(g)
- P(g);N_GUARD,XS(G)::QAB1(B)
- P(g);N_GUARD::QAB1(B)
- Tries
- Try
- K(D);N_SPINB(C),P-FLIGHT
- Vars
- P(g);N_GUARD,XS(G)::QAB1(B)
- P(c);OGATEB::QAR2(B),XP(c)
- P(e);SBLOCK::QAR1(B)
- P(f);OGATE::R(H),XP(g)
- R(h);N_GUARD::S(G),XP(f)
- S(a);N_GUARD::B(A),XR(b)
- P(g);N_GUARD::QAB1(B)
- Refutation
- R(h);CHECK
- Try
- K(D);N_SPINB(C),S_FLIGHT
- Vars
- P(g);N_GUARD,XS(G)::QAB1(B)
- P(c);OGATEB::QAR2(B),XP(c)
- P(e);SBLOCK::QAR1(B)
- P(f);OGATE::R(H),XP(g)
- R(h);N_GUARD::S(G),XP(f)
- S(a);N_GUARD::B(A),XR(b)
- P(g);N_GUARD::QAB1(B)
- Refutation
- R(h);CHECK
- Try
- K(D);P-FLIGHT
- Vars
- P(g);N_GUARD,XS(G)::QAB1(B)
- P(c);::QAR2(B),XP(c)
- P(e);SBLOCK::QAR1(B)
- P(f);OGATE::R(H),XP(g)
- R(h);N_GUARD::S(G),XP(f)
- R(h);N_GUARD,P_PINR(H)::S(G),XP(f)
- P(g);N_GUARD::QAB1(B)
- Refutation
- S(a);CHECK
- Try
- R(H);
- Vars
- P(g);N_GUARD,XS(G)::QAB1(B)
- P(c);::QAR2(B),XP(c)
- P(e);SBLOCK::QAR1(B)
- P(f);OGATE::R(H),XP(g)
- R(h);N_GUARD::S(G),XP(f)
- S(a);N_GUARD::B(A),XR(b)
- P(g);N_GUARD::QAB1(B)
- Refutation
- R(h);CHECK
- Try
- R(H);
- Vars
- P(g);N_GUARD,XS(G)::QAB1(B)
- P(c);::QAR2(B),XP(c)
- P(e);SBLOCK::QAR1(B)
- P(f);OGATE::R(H),XP(g)
- R(h);N_GUARD::S(G),XP(f)
- S(a);N_GUARD::B(A),XR(b)
- P(g);N_GUARD::QAB1(B)
- Refutation
- R(h);CHECK
- Try
- R(H);
- Vars
- P(g);N_GUARD,XS(G)::QAB1(B)
- P(c);::QAR2(B),XP(c)
- P(e);SBLOCK::QAR1(B)
- P(f);OGATE::R(H),XP(g)
- R(h);N_GUARD::S(G),XP(f)
- S(a);N_GUARD::B(A),XR(b)
- P(g);N_GUARD::QAB1(B)
- Refutation
- R(h);CHECK
- Try
- Actual
- R(H);
- Vars
- P(g);N_GUARD,XS(G)::QAB1(B)
- P(c);::QAR2(B),XP(c)
- P(e);SBLOCK::QAR1(B)
- P(f);OGATE::R(H)+P(E),XP(f),EP
- R(h);N_GUARD::S(G),XP(f)
- R(h);N_GUARD,P_PINR(H)::S(G),XP(f)
- S(a);N_GUARD::B(A),XR(b)
- P(f);OGATE::R(H)+P(E),XP(f)
- P(g);N_GUARD::QAB1(B)
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).