MESON Chess Problem Database
Problem Display
PID: 2869 (bbQ1N1n1/5p2/1p1P2p1/1p6/4k1P1/5NP1/3KP3/3R4 w - - 0 1)
Williams, Philip Hamilton
Source?, 1897
#2
9 + 8
| 16 | Chess Amateur (The) | 1909 |
| 2681 | All Change Here! | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Kd5
- 2.Ke3#
- 1...Bd5
- 2.Qc2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Bxd6
- 2.Qxa8#
- 1...Ba7
- 2.Qxa8#
- 1...Bc7
- 2.Qxa8#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...b4
- 2.Qc4#
- 1...g5
- 2.Qf5#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Kd5
- Tries
- 1.Ra1?
- 1...Bxd6
- 2.Qxa8#
- 1...Bd5
- 2.Qc2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Ba7
- 2.Qxa8#
- 1...Bc7
- 2.Qxa8#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...b4
- 2.Qc4#
- 1...g5
- 2.Qf5#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Kd5!
- 1...Bxd6
- 1.Rb1?
- 1...Bxd6
- 2.Qxa8#
- 1...Bd5
- 2.Qc2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Ba7
- 2.Qxa8#
- 1...Bc7
- 2.Qxa8#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...b4
- 2.Qc4#
- 1...g5
- 2.Qf5#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Kd5!
- 1...Bxd6
- 1.Rc1?
- 1...Bxd6
- 2.Qxa8#
- 1...Bd5
- 2.Qc2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Ba7
- 2.Qxa8#
- 1...Bc7
- 2.Qxa8#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...b4
- 2.Qc4#
- 1...g5
- 2.Qf5#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Kd5!
- 1...Bxd6
- 1.Rf1?
- 1...Bxd6
- 2.Qxa8#
- 1...Bd5
- 2.Qc2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Ba7
- 2.Qxa8#
- 1...Bc7
- 2.Qxa8#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...b4
- 2.Qc4#
- 1...g5
- 2.Qf5#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Kd5!
- 1...Bxd6
- 1.Rg1?
- 1...Bxd6
- 2.Qxa8#
- 1...Bd5
- 2.Qc2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Ba7
- 2.Qxa8#
- 1...Bc7
- 2.Qxa8#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...b4
- 2.Qc4#
- 1...g5
- 2.Qf5#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Kd5!
- 1...Bxd6
- 1.Rh1?
- 1...Bxd6
- 2.Qxa8#
- 1...Bd5
- 2.Qc2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Ba7
- 2.Qxa8#
- 1...Bc7
- 2.Qxa8#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...b4
- 2.Qc4#
- 1...g5
- 2.Qf5#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Kd5!
- 1...Bxd6
- 1.Qc3?
- threat
- 2.Qd4#
- 2.Qe5#
- 2.Qd3#
- 1...Bxd6
- 2.Qd4#
- 2.Qd3#
- 1...f6
- 2.Qd4#
- 2.Qd3#
- 1...Kd5!
- threat
- 1.Qc5?
- threat
- 2.Sg5#
- 2.Qd4#
- 2.Qe5#
- 1...Bxd6
- 2.Sg5#
- 2.Sxd6#
- 2.Qd4#
- 1...Bd5
- 2.Qe3#
- 2.Qd4#
- 2.Qc2#
- 1...g5
- 2.Sxg5#
- 2.Qd4#
- 2.Qe5#
- 2.Qf5#
- 1...f6
- 2.Qd4#
- 1...bxc5!
- threat
- 1.Ra1?
- Keys
- 1.Re1!
- 1...Kd5
- 2.e4#
- 1...Bxd6
- 2.Qxa8#
- 1...Bd5
- 2.Qc2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Ba7
- 2.Qxa8#
- 1...Bc7
- 2.Qxa8#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...b4
- 2.Qc4#
- 1...g5
- 2.Qf5#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Kd5
- 1.Re1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(a);S_FLIGHT::R(A)+K(B)
- B(f);SBLOCK::QAB(H)
- B(f);N_GUARD::QAB(H),XB(f)
- B(g);OGATE,XP(G)::QAB(H),XB(f)
- B(g);OGATE::QAB(H),XB(f)
- S(h);N_GUARD::S(I),XS(h)
- S(h);N_GUARD::S(I)
- P(b);N_GUARD::QAR2(H)
- P(d);N_GUARD::QAB1(H)
- P(e);N_GUARD::QAR2(H)
- Tries
- Try
- R(A);
- Vars
- B(g);OGATE,XP(G)::QAB(H),XB(f)
- B(f);SBLOCK::QAB(H)
- B(f);N_GUARD::QAB(H),XB(f)
- B(g);OGATE::QAB(H),XB(f)
- S(h);N_GUARD::S(I),XS(h)
- S(h);N_GUARD::S(I)
- P(b);N_GUARD::QAR2(H)
- P(d);N_GUARD::QAB1(H)
- P(e);N_GUARD::QAR2(H)
- Refutation
- K(a);S_FLIGHT
- Try
- R(A);
- Vars
- B(g);OGATE,XP(G)::QAB(H),XB(f)
- B(f);SBLOCK::QAB(H)
- B(f);N_GUARD::QAB(H),XB(f)
- B(g);OGATE::QAB(H),XB(f)
- S(h);N_GUARD::S(I),XS(h)
- S(h);N_GUARD::S(I)
- P(b);N_GUARD::QAR2(H)
- P(d);N_GUARD::QAB1(H)
- P(e);N_GUARD::QAR2(H)
- Refutation
- K(a);S_FLIGHT
- Try
- R(A);
- Vars
- B(g);OGATE,XP(G)::QAB(H),XB(f)
- B(f);SBLOCK::QAB(H)
- B(f);N_GUARD::QAB(H),XB(f)
- B(g);OGATE::QAB(H),XB(f)
- S(h);N_GUARD::S(I),XS(h)
- S(h);N_GUARD::S(I)
- P(b);N_GUARD::QAR2(H)
- P(d);N_GUARD::QAB1(H)
- P(e);N_GUARD::QAR2(H)
- Refutation
- K(a);S_FLIGHT
- Try
- R(A);
- Vars
- B(g);OGATE,XP(G)::QAB(H),XB(f)
- B(f);SBLOCK::QAB(H)
- B(f);N_GUARD::QAB(H),XB(f)
- B(g);OGATE::QAB(H),XB(f)
- S(h);N_GUARD::S(I),XS(h)
- S(h);N_GUARD::S(I)
- P(b);N_GUARD::QAR2(H)
- P(d);N_GUARD::QAB1(H)
- P(e);N_GUARD::QAR2(H)
- Refutation
- K(a);S_FLIGHT
- Try
- R(A);
- Vars
- B(g);OGATE,XP(G)::QAB(H),XB(f)
- B(f);SBLOCK::QAB(H)
- B(f);N_GUARD::QAB(H),XB(f)
- B(g);OGATE::QAB(H),XB(f)
- S(h);N_GUARD::S(I),XS(h)
- S(h);N_GUARD::S(I)
- P(b);N_GUARD::QAR2(H)
- P(d);N_GUARD::QAB1(H)
- P(e);N_GUARD::QAR2(H)
- Refutation
- K(a);S_FLIGHT
- Try
- R(A);
- Vars
- B(g);OGATE,XP(G)::QAB(H),XB(f)
- B(f);SBLOCK::QAB(H)
- B(f);N_GUARD::QAB(H),XB(f)
- B(g);OGATE::QAB(H),XB(f)
- S(h);N_GUARD::S(I),XS(h)
- S(h);N_GUARD::S(I)
- P(b);N_GUARD::QAR2(H)
- P(d);N_GUARD::QAB1(H)
- P(e);N_GUARD::QAR2(H)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(H);
- Threat
- DUALS(3)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- P(e);::QAR1(H)
- Refutation
- P(c);XQ(H)
- Try
- Actual
- R(A);
- Vars
- K(a);OGATE,S_FLIGHT::P(C)
- B(g);OGATE,XP(G)::QAB(H),XB(f)
- B(f);SBLOCK::QAB(H)
- B(f);N_GUARD::QAB(H),XB(f)
- B(g);OGATE::QAB(H),XB(f)
- S(h);N_GUARD::S(I),XS(h)
- S(h);N_GUARD::S(I)
- P(b);N_GUARD::QAR2(H)
- P(d);N_GUARD::QAB1(H)
- P(e);N_GUARD::QAR2(H)
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).