MESON Chess Problem Database
Problem Display
PID: 276286 (4B3/1Np1r3/5B2/2Ppn3/2PkP3/2p1N1Q1/R1K5/b7 w - - 0 1)
Fomichev, Evgeny Vasilevich
Phenix, 2003
#2
10 + 7
| 3713 | Snap | 2024 |
SOLUTION
- SOUND
- Tries
- 1.Sg2?
- threat
- 2.Qd3#
- 1...Kxc4
- 2.Ra4#
- 1...Kxe4
- 2.Qf4#
- 1...dxc4
- 2.Qe3#
- 1...dxe4!
- threat
- 1.Sf5+?
- 1...Kxc4
- 2.Ra4#
- 1...Kxe4!
- 1...Kxc4
- 1.Bxe5+?
- 1...Kxe4
- 2.Bg6#
- 2.Qf4#
- 1...Rxe5!
- 1...Kxe4
- 1.Ra4?
- threat
- 2.cxd5#
- 1...dxc4
- 2.Rxc4#
- 1...dxe4
- 2.Sf5#
- 1...Kxe4!
- threat
- 1.Qf4?
- threat
- 2.exd5#
- 1...dxc4
- 2.Sf5#
- 1...dxe4!
- threat
- 1.Sg2?
- Keys
- 1.Sxd5!
- threat
- 2.Qd3#
- 1...Kxc4
- 2.Ra4#
- 1...Kxe4
- 2.Qf4#
- threat
- 1.Sxd5!
Anticipated by 106127(2002)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(C);
- Threat
- QAR1(D)
- Vars
- K(c);N_SPINS(e),OGATEB,P-FLIGHT,XP(E)::R(A)
- K(c);N_SPINS(e),OGATEB,P-FLIGHT,XP(F)::QAR1(D)
- P(d);SBLOCK,XP(E)::QAB1(D)
- Refutation
- P(d);XP(F)
- Try
- S(C);CHECK
- Vars
- K(c);N_GUARD,N_SPINS(e),P-FLIGHT,XP(E)::R(A)
- Refutation
- K(c);N_SPINS(e),P-FLIGHT,XP(F)
- Try
- B(H);CHECK,XS(e)
- Refutation
- R(g);XB(H)
- Try
- R(A);
- Threat
- R(A)+P(E),XP(d)
- Vars
- P(d);OGATE,P_SPINP(d),XP(E)::R1(A),XP(d)
- P(d);SBLOCK,XP(F)::S(C)
- Refutation
- K(c);N_SPINS(e),P-FLIGHT,XP(F)
- Try
- Q(D);
- Threat
- QAR(D)+P(F),XP(d)
- Vars
- P(d);SBLOCK,XP(E)::S(C)
- Refutation
- P(d);P_SPINP(d),XP(F)
- Try
- Actual
- S(C);XP(d)
- Threat
- QAR1(D)
- Vars
- K(c);N_SPINS(e),OGATEB,P-FLIGHT,XP(E)::R(A)
- K(c);N_SPINS(e),OGATEB,P-FLIGHT,XP(F)::QAR1(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).