MESON Chess Problem Database
Problem Display
PID: 261868 (1N1k3B/NPp1pB1R/3p2pK/3r2p1/p7/7p/2qQr3/8 w - - 0 1)
Lipton, Michael
The Problemist, 1952
#2
8 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Sac6#
- 1...Qd1
- 2.Sac6#
- 1...Qb3
- 2.Sac6#
- 1...Qd3
- 2.Sac6#
- 1...Qe4
- 2.Sac6#
- 1...Qf5
- 2.Sac6#
- 1...Qa2
- 2.Sac6#
- 1...Qb2
- 2.Sac6#
- 1...Qxd2
- 2.Sac6#
- 1...Qc6
- 2.Saxc6#
- 1...c5
- 2.Qa5#
- 1...e5
- 2.Bf6#
- 2.Qxg5#
- 1...e6
- 2.Bf6#
- 1...Qb1
- Tries
- 1.Sbc6+?
- 1...Kd7
- 2.b8S#
- 1...Qxc6!
- 1...Kd7
- 1.Be5?
- threat
- 2.Rh8#
- 1...c5
- 2.Qa5#
- 1...e6
- 2.Bf6#
- 2.Qxg5#
- 1...Qc6
- 2.Saxc6#
- 1...c6!
- threat
- 1.Bg7?
- threat
- 2.Rh8#
- 1...c5
- 2.Qa5#
- 1...e5
- 2.Bf6#
- 2.Qxg5#
- 1...e6
- 2.Bf6#
- 1...Qc6
- 2.Saxc6#
- 1...c6!
- threat
- 1.Sbc6+?
- Keys
- 1.Bd4!
- threat
- 2.Rh8#
- 1...c5
- 2.Qa5#
- 1...c6
- 2.Bb6#
- 1...e5
- 2.Qxg5#
- 1...e6
- 2.Bf6#
- 1...Qc6
- 2.Saxc6#
- threat
- 1.Bd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD::S(C)
- Q(a);N_GUARD,XQ(A)::S(C)
- Q(a);N_GUARD::S(C),XQ(a)
- P(i);OGATEB::QAB(A)
- P(j);OGATEB::B(H)
- Tries
- Try
- S(G);CHECK
- Vars
- K(k);N_GUARD,P-FLIGHT::P=S
- Refutation
- Q(a);XS(G)
- Try
- B(H);
- Threat
- R(F)
- Vars
- P(i);OGATEB::QAB(A)
- Q(a);N_GUARD::S(C),XQ(a)
- Refutation
- P(i);
- Try
- B(H);
- Threat
- R(F)
- Vars
- P(i);OGATEB::QAB(A)
- P(j);OGATEB::B(H)
- Q(a);N_GUARD::S(C),XQ(a)
- Refutation
- P(i);
- Try
- Actual
- B(H);
- Threat
- R(F)
- Vars
- P(i);OGATEB::QAB(A)
- P(i);OGATEB::B(H)
- P(j);OGATEB::QAB(A),XP(f)
- P(j);OGATEB::B(H)
- Q(a);N_GUARD::S(C),XQ(a)
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).