MESON Chess Problem Database
Problem Display
PID: 7248 (3KQ3/3p4/2p5/8/kP1R4/1p6/4B3/1N6 w - - 0 1)
Semenenko, Aleksandr
1st Prize, Kotovsky-220 JT, 1999
#2
6 + 4
SOLUTION
- SOUND
- Sets
- 1...c5
- 2.Qxd7#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qxc6#
- 1...c5
- Tries
- 1.Kc8?
- 1...c5
- 2.Qxd7#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qxc6#
- 1...b2!
- 1...c5
- 1.Bd1?
- 1...c5
- 2.Qxd7#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qxc6#
- 1...Kb5!
- 1...c5
- 1.Bf1?
- 1...c5
- 2.Qxd7#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qxc6#
- 1...b2!
- 1...c5
- 1.Bd3?
- 1...c5
- 2.Qxd7#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qxc6#
- 1...b2!
- 1...c5
- 1.Ba6?
- 1...c5
- 2.Qxd7#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qxc6#
- 1...b2!
- 1...c5
- 1.Re4?
- 1...c5
- 2.Qxd7#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qxc6#
- 1...b2!
- 1...c5
- 1.Rf4?
- 1...c5
- 2.Qxd7#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qxc6#
- 1...b2!
- 1...c5
- 1.Rg4?
- 1...c5
- 2.Qxd7#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qxc6#
- 1...b2!
- 1...c5
- 1.Rh4?
- 1...c5
- 2.Qxd7#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qxc6#
- 1...b2!
- 1...c5
- 1.Qg6?
- 1...b2
- 2.Qc2#
- 1...c5
- 2.Qa6#
- 1...d5
- 2.Qxc6#
- 1...d6!
- 1...b2
- 1.Qe4?
- 1...b2
- 2.Qc2#
- 1...c5
- 2.Qa8#
- 1...d6
- 2.Qxc6#
- 1...d5!
- 1...b2
- 1.Qe7?
- 1...d5
- 2.Qa7#
- 1...c5
- 2.Qxd7#
- 1...d6
- 2.Qa7#
- 1...b2!
- 1...d5
- 1.Kc8?
- Keys
- 1.Qf7!
- 1...b2
- 2.Qa2#
- 1...c5
- 2.Qxd7#
- 1...d5
- 2.Qa7#
- 1...d6
- 2.Qa7#
- 1...b2
- 1.Qf7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- P(c);OGATEB,P_SPINP(d)::QAB(F),XP(d)
- P(d);OGATE,P_SPINP(c)::QAB(F),XP(c)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- P(c);OGATEB,P_SPINP(d)::QAB(F),XP(d)
- P(d);OGATE,P_SPINP(c)::QAB(F),XP(c)
- Refutation
- P(a);
- Try
- B(B);P_PINP(a)
- Vars
- P(c);OGATEB::QAB(F),XP(d)
- P(d);OGATE::QAB(F),XP(c)
- Refutation
- K(b);N_SPINP(a),S_FLIGHT
- Try
- B(B);
- Vars
- P(c);OGATEB,P_SPINP(d)::QAB(F),XP(d)
- P(d);OGATE,P_SPINP(c)::QAB(F),XP(c)
- Refutation
- P(a);
- Try
- B(B);
- Vars
- P(c);OGATEB,P_SPINP(d)::QAB(F),XP(d)
- P(d);OGATE,P_SPINP(c)::QAB(F),XP(c)
- Refutation
- P(a);
- Try
- B(B);
- Vars
- P(c);OGATEB,P_SPINP(d)::QAB(F),XP(d)
- P(d);OGATE,P_SPINP(c)::QAB(F),XP(c)
- Refutation
- P(a);
- Try
- R(D);
- Vars
- P(c);OGATEB,P_SPINP(d)::QAB(F),XP(d)
- P(d);OGATE,P_SPINP(c)::QAB(F),XP(c)
- Refutation
- P(a);
- Try
- R(D);
- Vars
- P(c);OGATEB,P_SPINP(d)::QAB(F),XP(d)
- P(d);OGATE,P_SPINP(c)::QAB(F),XP(c)
- Refutation
- P(a);
- Try
- R(D);
- Vars
- P(c);OGATEB,P_SPINP(d)::QAB(F),XP(d)
- P(d);OGATE,P_SPINP(c)::QAB(F),XP(c)
- Refutation
- P(a);
- Try
- R(D);
- Vars
- P(c);OGATEB,P_SPINP(d)::QAB(F),XP(d)
- P(d);OGATE,P_SPINP(c)::QAB(F),XP(c)
- Refutation
- P(a);
- Try
- Q(F);
- Vars
- P(a);OGATEB::QAB(F)
- P(c);OGATE::QAR2(F)
- P(d);N_GUARD::QAB(F),XP(c)
- Refutation
- P(d);
- Try
- Q(F);
- Vars
- P(a);OGATEB::QAB(F)
- P(c);OGATE::QAR(F)
- P(d);N_GUARD::QAB(F),XP(c)
- Refutation
- P(d);
- Try
- Q(F);
- Vars
- P(d);OGATE::QAR(F)
- P(c);OGATEB::QAB(F),XP(d)
- Refutation
- P(a);
- Try
- Actual
- Q(F);
- Vars
- P(a);OGATE::QAR2(F)
- P(c);OGATEB::QAB(F),XP(d)
- P(d);OGATE::QAR(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).