MESON Chess Problem Database
Problem Display
PID: 68306 (7r/6Q1/p3pp2/2p5/2pR3p/K1kB4/5B2/5N2 w - - 0 1)
Kirillov, Valery Afanasievich
Maslov, Boris Grigorevich
Mishko, Mikhail
The Problemist, 2006
#2
6 + 8
SOLUTION
- SOUND
- Sets
- 1...f5
- 2.Be1#
- 1...f5
- Tries
- 1.Rd5?
- threat
- 2.Be1#
- 1...cxd3
- 2.Rxc5#
- 1...exd5!
- threat
- 1.Qh6?
- threat
- 2.Qc1#
- 2.Qd2#
- 1...cxd4
- 2.Qd2#
- 1...Rxh6!
- threat
- 1.Qg3?
- threat
- 2.Rxc4#
- 1...cxd3
- 2.Qxd3#
- 1...cxd4
- 2.Be1#
- 1...hxg3!
- threat
- 1.Qg5?
- threat
- 2.Qc1#
- 2.Qd2#
- 1...cxd4
- 2.Qd2#
- 1...fxg5!
- threat
- 1.Qg6?
- threat
- 2.Rxc4#
- 1...cxd3
- 2.Qxd3#
- 1...cxd4
- 2.Be1#
- 1...f5!
- threat
- 1.Qc7?
- threat
- 2.Qa5#
- 1...cxd3
- 2.Qxc5#
- 1...cxd4
- 2.Qxc4#
- 1...a5
- 2.Qxa5#
- 1...Rb8!
- threat
- 1.Qd7?
- threat
- 2.Be1#
- 2.Rxc4#
- 1...cxd4
- 2.Qxd4#
- 1...cxd3!
- threat
- 1.Rd5?
- Keys
- 1.Qg4!
- threat
- 2.Be1#
- 1...cxd3
- 2.Rc4#
- 1...cxd4
- 2.Qxd4#
- threat
- 1.Qg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- P(g);::B(B)
- Tries
- Try
- R(E);P_PINP(g)
- Threat
- B(B)
- Vars
- P(b);OGATEB,SBLOCK,XB(D)::R(E),XP(d)
- Refutation
- P(f);XR(E)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- P(d);XR(E)::QAB1(F)
- Refutation
- R(h);XQ(F)
- Try
- Q(F);
- Threat
- R1(E),XP(b)
- Vars
- P(b);OGATE,P_SPINP(b),XB(D)::QAR1(F),XP(b)
- P(d);SBLOCK,XR(E)::B(B)
- Refutation
- P(c);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- P(d);XR(E)::QAB1(F)
- Refutation
- P(g);XQ(F)
- Try
- Q(F);
- Threat
- R1(E),XP(b)
- Vars
- P(b);OGATE,XB(D)::QAR1(F),XP(b)
- P(d);SBLOCK,XR(E)::B(B)
- Refutation
- P(g);
- Try
- Q(F);
- Threat
- QAB(F)
- Vars
- P(b);OGATEB,P_SPINP(d),XB(D)::QAR2(F),XP(d)
- P(d);OGATE,P_SPINP(b),XR(E)::QAR1(F),XP(b)
- P(e);::QAB(F),XP(e)
- Refutation
- R(h);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- P(d);OGATE,XR(E)::QAB1(F),XP(d)
- Refutation
- P(b);XB(D)
- Try
- Actual
- Q(F);
- Threat
- B(B)
- Vars
- P(b);SBLOCK,XB(D)::R1(E)
- P(d);OGATE,XR(E)::QAB1(F),XP(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).