MESON Chess Problem Database
Problem Display
PID: 222456 (1R2N3/4pp2/1qP1k3/1p2P3/8/8/1B2Q3/1K3R2 w - - 0 1)
Gale, George W
San Francisco Argonaut, 1884
#2
8 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Sc7#
- 1...Qe3
- 2.Sc7#
- 1...Qd4
- 2.Sc7#
- 1...Qc5
- 2.Sc7#
- 1...Qc7
- 2.Sxc7#
- 1...Qa6
- 2.Sc7#
- 1...b4
- 2.Qc4#
- 1...Qg1
- Tries
- 1.Qd1?
- threat
- 2.Sg7#
- 2.Qb3#
- 2.Qd7#
- 1...Qxc6
- 2.Sg7#
- 1...Qf2
- 2.Sg7#
- 2.Qd7#
- 1...f5
- 2.Qb3#
- 1...f6
- 2.Qb3#
- 1...Qg1
- 2.Sc7#
- 2.Qb3#
- 2.Qd7#
- 1...Qe3
- 2.Sc7#
- 2.Sg7#
- 2.Qd7#
- 1...Qc5
- 2.Sc7#
- 2.Sg7#
- 2.Qd7#
- 1...Qa7
- 2.Sg7#
- 2.Qb3#
- 1...Qc7
- 2.Sxc7#
- 2.Sg7#
- 2.Qb3#
- 1...Qd8
- 2.Sg7#
- 1...Qb7
- 2.Sg7#
- 2.Qb3#
- 1...Qd4!
- threat
- 1.Qd3?
- threat
- 2.Sg7#
- 2.Qb3#
- 2.Qd7#
- 1...Qxc6
- 2.Sg7#
- 1...f5
- 2.Qb3#
- 1...f6
- 2.Qb3#
- 1...Qg1
- 2.Sc7#
- 2.Qb3#
- 2.Qd7#
- 1...Qf2
- 2.Sc7#
- 2.Sg7#
- 2.Qd7#
- 1...Qe3
- 2.Sc7#
- 2.Sg7#
- 2.Qd7#
- 1...Qc5
- 2.Sc7#
- 2.Sg7#
- 2.Qd7#
- 1...Qa7
- 2.Sg7#
- 2.Qb3#
- 1...Qc7
- 2.Sxc7#
- 2.Sg7#
- 2.Qb3#
- 1...Qd8
- 2.Sg7#
- 1...Qb7
- 2.Sg7#
- 2.Qb3#
- 1...Qd4!
- threat
- 1.Qf3?
- threat
- 2.Sg7#
- 2.Qb3#
- 2.Qxf7#
- 1...Qxc6
- 2.Qxc6#
- 1...f5
- 2.Qb3#
- 1...f6
- 2.Qb3#
- 1...Qg1
- 2.Sc7#
- 2.Qb3#
- 2.Qxf7#
- 1...Qf2
- 2.Sc7#
- 2.Sg7#
- 1...Qe3
- 2.Sc7#
- 2.Sg7#
- 2.Qxf7#
- 1...Qc5
- 2.Sc7#
- 2.Sg7#
- 2.Qxf7#
- 1...Qd8
- 2.Sg7#
- 2.Qxf7#
- 1...Qd4!
- threat
- 1.Qg4+?
- 1...f5
- 2.Qg8#
- 1...Kd5!
- 1...f5
- 1.Qg2?
- threat
- 2.Sg7#
- 1...Qxc6
- 2.Qxc6#
- 1...f5
- 2.Qg8#
- 1...f6
- 2.Qg8#
- 1...Qd4!
- threat
- 1.Qd1?
- Keys
- 1.Qxb5!
- threat
- 2.Sg7#
- 2.Qc4#
- 1...Qxb5
- 2.Sc7#
- 1...Qxc6
- 2.Qxc6#
- 1...Qf2
- 2.Sg7#
- 1...Qc5
- 2.Sc7#
- 1...f5
- 2.Qc4#
- 1...f6
- 2.Qc4#
- 1...Qg1
- 2.Sc7#
- 2.Qc4#
- 2.Qb3#
- 1...Qd4
- 2.Sc7#
- 2.Sg7#
- 1...Qa5
- 2.Sg7#
- 1...Qd8
- 2.Sg7#
- 1...Qa6
- 2.Sc7#
- 2.Sg7#
- threat
- 1.Qxb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 6
- Sets
- Q(b);N_GUARD,P_PINR(B)::S(H)
- Q(b);N_GUARD::S(H)
- Q(b);N_GUARD::S(H),XQ(b)
- P(a);N_GUARD::QAB(D)
- Tries
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- Q(b);XP(F)::S(H)
- P(e);::QAB(D)
- Q(b);::S(H)
- Refutation
- Q(b);
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- Q(b);XP(F)::S(H)
- P(e);::QAB(D)
- Q(b);::S(H)
- Refutation
- Q(b);
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- Q(b);OGATE,XP(F)::QAR2(D),XQ(b)
- P(e);::QAB(D)
- Refutation
- Q(b);
- Try
- Q(D);CHECK
- Vars
- P(e);OGATEB,P_SPINP(e)::QAB(D)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(D);
- Threat
- S(H)
- Vars
- Q(b);OGATE,XP(F)::QAR2(D),XQ(b)
- P(e);OGATEB::QAB(D)
- Refutation
- Q(b);
- Try
- Actual
- Q(D);XP(a)
- Threat
- DUALS(2)
- Vars
- Q(b);N_GUARD,P_PINB(C),XQ(D)::S(H)
- Q(b);OGATE,XP(F)::QAR2(D),XQ(b)
- Q(b);::S(H)
- Q(b);N_GUARD::S(H)
- P(e);::QAB(D)
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).