MESON Chess Problem Database
Problem Display
PID: 149436 (3BK2Q/r2p1RN1/p5R1/3pk2P/7p/3Pp2b/B1N2pn1/4brq1 w - - 0 1)
Chepizhni, Viktor Ivanovich
The Problemist, 2012
#2
10 + 13
SOLUTION
- SOUND
- Sets
- 1...Bf5
- 2.Rxf5#
- 1...Sf4
- 2.Sf5#
- 1...d6
- 2.Se6#
- 1...Bf5
- Tries
- 1.Kf8?
- threat
- 2.Se8#
- 1...Bf5
- 2.Rxf5#
- 1...Bb4+!
- threat
- 1.Bg5?
- threat
- 2.Sf5#
- 1...Bf5
- 2.Sxf5#
- 2.Rxf5#
- 1...Ra8+!
- threat
- 1.Bc7+?
- 1...d6
- 2.Se6#
- 2.Bxd6#
- 1...Rxc7!
- 1...d6
- 1.Be7?
- threat
- 2.Se6#
- 2.Bd6#
- 1...Bb4
- 2.Se6#
- 1...Be6
- 2.Sxe6#
- 1...d6
- 2.Se6#
- 2.Bxd6#
- 1...Ra8+!
- threat
- 1.Rb6?
- threat
- 2.Se6#
- 1...Be6
- 2.Sxe6#
- 1...Sf4
- 2.Bf6#
- 1...d6!
- threat
- 1.Kf8?
- Keys
- 1.Rf3!
- threat
- 2.Sf5#
- 1...d6
- 2.Bf6#
- 1...Bf5
- 2.Sxf5#
- 2.Rxf5#
- 1...Sf4
- 2.Rxe3#
- threat
- 1.Rf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- B(g);N_GUARD::R1(F),XB(g)
- S(e);SBLOCK::QAB(J)+S(G)
- P(m);SBLOCK::QAB(J)+S(G)
- Tries
- Try
- K(I);P-FLIGHT
- Threat
- QAB(J)+S(G)
- Vars
- B(g);N_GUARD::R1(F),XB(g)
- Refutation
- B(a);CHECK
- Try
- B(H);
- Threat
- QAB(J)+S(G)
- Refutation
- R(l);CHECK
- Try
- B(H);CHECK
- Refutation
- R(l);XB(H)
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- B(a);::QAB(J)+S(G)
- B(g);::QAB(J)+S(G),XB(g)
- Refutation
- R(l);CHECK
- Try
- R(E);
- Threat
- QAB(J)+S(G)
- Vars
- B(g);::QAB(J)+S(G),XB(g)
- S(e);SBLOCK::B(H)
- Refutation
- P(m);
- Try
- Actual
- R(F);
- Threat
- QAB(J)+S(G)
- Vars
- P(m);SBLOCK::B(H)
- S(e);N_GUARD,SBLOCK::R(F),XP(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).