MESON Chess Problem Database
Problem Display
PID: 101254 (8/prpP2PP/3Pk1p1/R3P3/1PKb1RqN/2Bp2rB/Q4p2/8 w - - 0 1)
Stimson, James Frank (Ua Tane)
Good Companions, 1920
#2
13 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Bxg4#
- 1...Rf3
- 2.Bxg4#
- 1...Re3
- Tries
- 1.d8Q?
- threat
- 2.Kxd4#
- 2.Rf6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...Rxb4+
- 2.Kxb4#
- 1...Qxh3
- 2.Kxd4#
- 2.Rf6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...Rxh3
- 2.Kxd4#
- 2.Rf6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...Bxe5
- 2.Kc5#
- 2.Rxe5#
- 2.Qe7#
- 2.g8Q#
- 2.g8B#
- 1...cxd6
- 2.Rf6#
- 2.Qxd6#
- 1...Rb5
- 2.Qe7#
- 2.Qe8#
- 1...f1Q
- 2.Kxd4#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...f1S
- 2.Kxd4#
- 2.Rf6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...f1B
- 2.Kxd4#
- 2.Rf6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...f1R
- 2.Kxd4#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...Rg1
- 2.Kxd3#
- 2.Kxd4#
- 2.Rf6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...Rg2
- 2.Kxd3#
- 2.Kxd4#
- 2.Rf6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...Re3
- 2.Kxd4#
- 2.Bxg4#
- 2.Rf6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...Rf3
- 2.Kxd4#
- 2.Bxg4#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...Rb6
- 2.Kxd4#
- 2.Rf6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...d2
- 2.Kxd4#
- 2.Rf6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...g5
- 2.Kxd4#
- 2.Rf6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...a6
- 2.Kxd4#
- 2.Rf6#
- 2.Qe7#
- 2.Qc8#
- 2.Qe8#
- 2.g8Q#
- 2.g8B#
- 1...c6
- 2.Kxd4#
- 2.Rf6#
- 1...c5!
- threat
- 1.d8Q?
- Keys
- 1.Rf7!
- threat
- 2.Re7#
- 2.d8S#
- 1...Rxb4+
- 2.Kxb4#
- 1...Bxc3+
- 2.Kxc3#
- 1...Be3+
- 2.Kxd3#
- 1...Bc5+
- 2.Kxc5#
- 1...Bxe5+
- 2.Kc5#
- 1...Bb6+
- 2.Kb5#
- 1...Kxf7
- 2.g8Q#
- 1...cxd6
- 2.d8S#
- 1...Rb5
- 2.Re7#
- 1...c5
- 2.Re7#
- 1...Rb8
- 2.Re7#
- threat
- 1.Rf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 2
- Sets
- R(c);N_GUARD::B(C),XQ(e)
- Tries
- Try
- P(K);
- Threat
- DUALS(7)
- Vars
- R(i);CHECK,XP(D)::QAB(A)+K(E),XR(i)
- Refutation
- P(j);
- Try
- Actual
- R(F);
- Threat
- DUALS(2)
- Vars
- R(i);CHECK,XP(D)::QAB(A)+K(E),XR(i)
- B(d);CHECK,XB(B)::QAB(A)+K(E),XB(d)
- B(d);CHECK::QAB(A)+K(E),XP(b)
- B(d);CHECK::QAB(A)+K(E),XB(d)
- B(d);CHECK,XP(I)::QAB(A)+K(E)
- B(d);CHECK::QAB(A)+K(E)
- K(f);N_SPINQ(e),S_FLIGHT,XR(F)::P=Q
- P(j);XP(J)::P=S
- R(i);::R1(F)
- P(j);::R1(F)
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).