MESON Chess Problem Database
Problem Display
PID: 240534 (2b5/pq2p3/1bR3p1/RB1kPp2/p2P4/2P2P1p/6Q1/nK5n w - - 0 1)
Kopyl, Valery Volodimirovich
Variantim, 2012
#2
9 + 12
SOLUTION
- SOUND
- Sets
- 1...h2
- 2.f4#
- 1...e6
- 2.Rd6#
- 1...h2
- Tries
- 1.Rc5+?
- 1...Ke6
- 2.Qxg6#
- 1...Bxc5!
- 1...Ke6
- 1.Qf1?
- threat
- 2.Qc4#
- 1...Qxc6
- 2.Bc4#
- 1...Bxd4!
- threat
- 1.Qd2?
- threat
- 2.c4#
- 1...Bxd4
- 2.Qxd4#
- 1...Qxc6!
- threat
- 1.Qxg6?
- threat
- 2.Bc4#
- 1...Qxc6
- 2.Qxc6#
- 1...Bxa5
- 2.Rc5#
- 1...Bc5
- 2.Rxc5#
- 1...Bc7
- 2.Rc5#
- 1...Bd8
- 2.Rc5#
- 1...Be6
- 2.Qxe6#
- 1...e6
- 2.Rd6#
- 1...Bxd4!
- threat
- 1.Rc5+?
- Keys
- 1.Qe2!
- threat
- 2.Qc4#
- 1...Qxc6
- 2.Bc4#
- 1...Bxd4
- 2.c4#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- P(c);N_GUARD::QAB(B)+P(D)
- P(k);N_GUARD::R1(I)
- Tries
- Try
- R(I);CHECK
- Vars
- K(e);S_FLIGHT::QAR2(B),XP(h)
- Refutation
- B(g);P_PINB(G),XR(I)
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- Q(j);SBLOCK,XR(I)::R(F)+B(G),DCHECK
- Refutation
- B(g);P_PINB(G),XP(E)
- Try
- Q(B);
- Threat
- P(C)
- Vars
- B(g);OGATE,P_PINB(G),P_SPINB(g),XP(E)::QAR1(B),XB(g)
- Refutation
- Q(j);XR(I)
- Try
- Q(B);XP(h)
- Threat
- R(F)+B(G),DCHECK
- Vars
- Q(j);OGATE,XR(I)::QAB1(B),XQ(j)
- B(g);N_GUARD,P_PINB(G),XR(F)::R1(I)
- B(g);N_GUARD,P_PINB(G)::R1(I),XB(g)
- B(g);N_GUARD,P_PINB(G)::R1(I)
- B(l);N_GUARD::QAB1(B),XB(l)
- P(k);N_GUARD::R1(I)
- Refutation
- B(g);P_PINB(G),XP(E)
- Try
- Actual
- Q(B);
- Threat
- QAB1(B)
- Vars
- Q(j);SBLOCK,XR(I)::R(F)+B(G),DCHECK
- B(g);P_PINB(G),SBLOCK,XP(E)::P(C)
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).