MESON Chess Problem Database
Problem Display
PID: 250933 (8/6P1/K7/1N1p3Q/2k5/8/2P5/8 w - - 0 1)
Mateush, V
Uralski Problemist, 2011
#2
5 + 2
SOLUTION
- SOUND
- Tries
- 1.Ka5?
- 1...d4
- 2.g8Q#
- 2.g8B#
- 1...Kc5!
- 1...d4
- 1.Kb6?
- 1...d4
- 2.Qc5#
- 1...Kb4!
- 1...d4
- 1.Qd1?
- threat
- 2.Qd4#
- 1...Kb4
- 2.Qd4#
- 1...d4
- 2.Qxd4#
- 1...Kc5!
- threat
- 1.Qg4+?
- 1...d4
- 2.Qxd4#
- 1...Kc5!
- 1...d4
- 1.Qh4+?
- 1...d4
- 2.Qxd4#
- 1...Kc5!
- 1...d4
- 1.Qxd5+?
- 1...Kb4
- 2.Qd4#
- 1...Kxd5!
- 1...Kb4
- 1.Ka5?
- Keys
- 1.Qe5!
- threat
- 2.Qc3#
- 2.Qd4#
- 1...Kb4
- 2.Qd4#
- 1...Kc5
- 2.Qc3#
- 1...d4
- 2.Qxd4#
- threat
- 1.Qe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- P(b);::P=Q
- Refutation
- K(a);P-FLIGHT,P_SPINP(b)
- Try
- K(D);P-FLIGHT
- Vars
- P(b);OGATE::QAR1(C)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(C);
- Threat
- QAR1(C)
- Vars
- K(a);P-FLIGHT::QAR2(C)
- P(b);::QAR1(C),XP(b)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(C);CHECK
- Vars
- P(b);P_SPINP(b)::QAR1(C),XP(b)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(C);CHECK
- Vars
- P(b);P_SPINP(b)::QAR1(C),XP(b)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(C);CHECK,XP(b)
- Vars
- K(a);P-FLIGHT::QAR2(C)
- Refutation
- K(a);S_FLIGHT,XQ(C)
- Try
- Actual
- Q(C);
- Threat
- DUALS(2)
- Vars
- K(a);P-FLIGHT::QAR2(C)
- K(a);P-FLIGHT,P_SPINP(b)::QAR2(C)
- P(b);::QAR1(C),XP(b)
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).