MESON Chess Problem Database
Problem Display
PID: 3018 (1Qb2q2/3R4/1pP1pB2/2k5/PNp1r3/K1p5/2P5/8 w - - 0 1)
Williams, Philip Hamilton
Good Companions (October), 1917
#2
8 + 8
| 15 | British Chess Magazine | 1918 |
| 2681 | All Change Here! | 1919 |
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Qd6
- 2.Qxd6#
- 1...Qh6
- 2.Be7#
- 2.Qd6#
- 1...Qe7
- 2.Bxe7#
- 1...Qg7
- 2.Qd6#
- 1...Qxf6
- 2.Qd6#
- 1...Qf7
- 2.Qd6#
- 1...Qd8
- 2.Qd6#
- 1...Qe8
- 2.Qd6#
- 1...Qg8
- 2.Be7#
- 2.Qd6#
- 1...Qh8
- 2.Be7#
- 2.Qd6#
- 1...Re1
- 2.Bd4#
- 1...Re2
- 2.Bd4#
- 1...Re3
- 2.Bd4#
- 1...Rd4
- 2.Bxd4#
- 1...Rf4
- 2.Qe5#
- 1...Rg4
- 2.Qe5#
- 1...Rh4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Ba6
- 2.Qxf8#
- 1...Bb7
- 2.Qxf8#
- 1...Bxd7
- 2.Qxf8#
- 1...b5
- 2.Qa7#
- 2.Qxb5#
- 1...e5
- 2.Rd5#
- 1...Qd6
- Tries
- 1.Bd8?
- threat
- 2.Bxb6#
- 2.Qxb6#
- 1...Qxd8
- 2.Qd6#
- 1...Bxd7
- 2.Bxb6#
- 1...b5
- 2.Bb6#
- 2.Qa7#
- 2.Qxb5#
- 2.Qb6#
- 1...Bb7!
- threat
- 1.Rd1?
- 1...Qxf6
- 2.Qd6#
- 1...Qd6
- 2.Qxd6#
- 1...Qh6
- 2.Be7#
- 2.Qd6#
- 1...Qe7
- 2.Bxe7#
- 1...Qg7
- 2.Qd6#
- 1...Qf7
- 2.Qd6#
- 1...Qe8
- 2.Qd6#
- 1...Qg8
- 2.Be7#
- 2.Qd6#
- 1...Qh8
- 2.Be7#
- 2.Qd6#
- 1...Re1
- 2.Bd4#
- 1...Re2
- 2.Bd4#
- 1...Re3
- 2.Bd4#
- 1...Rd4
- 2.Bxd4#
- 1...Rf4
- 2.Qe5#
- 1...Rg4
- 2.Qe5#
- 1...Rh4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Ba6
- 2.Qxf8#
- 1...Bb7
- 2.Qxf8#
- 1...Bd7
- 2.Qxf8#
- 1...b5
- 2.Qa7#
- 2.Qxb5#
- 1...e5
- 2.Rd5#
- 1...Qd8!
- 1...Qxf6
- 1.Bd8?
- Keys
- 1.Qc7!
- 1...Qxf6
- 2.Qd6#
- 1...Bxd7
- 2.cxd7#
- 1...Qe7
- 2.Bxe7#
- 1...Qd6
- 2.Qxd6#
- 1...Qh6
- 2.Be7#
- 2.Qd6#
- 1...Qg7
- 2.Qd6#
- 1...Qf7
- 2.Qd6#
- 1...Qd8
- 2.Qd6#
- 1...Qe8
- 2.Qd6#
- 1...Qg8
- 2.Be7#
- 2.Qd6#
- 1...Qh8
- 2.Be7#
- 2.Qd6#
- 1...Re1
- 2.Bd4#
- 1...Re2
- 2.Bd4#
- 1...Re3
- 2.Bd4#
- 1...Rd4
- 2.Bxd4#
- 1...Rf4
- 2.Qe5#
- 1...Rg4
- 2.Qe5#
- 1...Rh4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Ba6
- 2.Sxa6#
- 1...Bb7
- 2.cxb7#
- 1...b5
- 2.Qa7#
- 1...e5
- 2.Rd5#
- 1...Qxf6
- 1.Qc7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(h);N_GUARD::QAB1(H),XQ(h)
- Q(h);N_GUARD::B(F),XQ(h)
- Q(h);N_GUARD::QAB1(H)
- Q(h);N_GUARD,XB(F)::QAB1(H)
- R(c);N_GUARD::B(F)
- R(c);N_GUARD::B(F),XR(c)
- R(c);N_GUARD::QAR2(H)
- R(c);N_GUARD::QAR2(H),XR(c)
- B(g);OGATE::QAB(H),XQ(h)
- B(g);OGATE,XR(G)::QAB(H),XQ(h)
- P(f);N_GUARD::R1(G)
- Tries
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(h);N_GUARD,XB(F)::QAB1(H)
- B(g);XR(G)::B(F),XP(e)
- Refutation
- B(g);
- Try
- R(G);
- Vars
- Q(h);N_GUARD,XB(F)::QAB1(H)
- Q(h);N_GUARD::QAB1(H),XQ(h)
- Q(h);N_GUARD::B(F),XQ(h)
- Q(h);N_GUARD::QAB1(H)
- R(c);N_GUARD::B(F)
- R(c);N_GUARD::B(F),XR(c)
- R(c);N_GUARD::QAR2(H)
- R(c);N_GUARD::QAR2(H),XR(c)
- B(g);OGATE::QAB(H),XQ(h)
- P(f);N_GUARD::R1(G)
- Refutation
- Q(h);
- Try
- Actual
- Q(H);
- Vars
- Q(h);N_GUARD,XB(F)::QAB1(H)
- B(g);OGATE,XR(G)::QAR(H)+P(E),XB(g)
- Q(h);N_GUARD::B(F),XQ(h)
- Q(h);N_GUARD::QAB1(H),XQ(h)
- Q(h);N_GUARD::QAB1(H)
- R(c);N_GUARD::B(F)
- R(c);N_GUARD::B(F),XR(c)
- R(c);N_GUARD::QAR2(H)
- R(c);N_GUARD::QAR2(H),XR(c)
- B(g);N_GUARD::S(D),XB(g)
- B(g);OGATE::QAR(H)+P(E),XB(g)
- P(e);OGATEB::QAB(H)
- P(f);N_GUARD::R1(G)
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).