MESON Chess Problem Database
Problem Display
PID: 268935 (6b1/3P1B2/2p1RB1K/N1prp3/2Nkp3/Rq4p1/1PPP4/3Q4 w - - 0 1)
Murashev, Pavel Aleksandrovich
Shakhmatnaya kompozitsiya, 2022
#2
12 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxc4
- 2.Sxc6#
- 1...Qc3
- 2.bxc3#
- 2.dxc3#
- 1...Qe3+
- 2.dxe3#
- 1...Rd6
- 2.Rxd6#
- 1...e3
- 2.Qg4#
- 1...Qxc4
- Tries
- 1.Se3?
- threat
- 2.Sf5#
- 2.Sxb3#
- 2.Sxc6#
- 1...Qxe3+
- 2.dxe3#
- 1...Qxc2
- 2.Sxc2#
- 2.Sf5#
- 2.Sxc6#
- 1...Qxb2
- 2.Sf5#
- 2.Sxc6#
- 1...Qxa3
- 2.Sf5#
- 2.Sxc6#
- 1...Rxd7
- 2.Sxb3#
- 2.Sxc6#
- 2.Bxe5#
- 1...Qa2
- 2.Sf5#
- 2.Sxc6#
- 1...Qa4
- 2.Sf5#
- 1...Qc4
- 2.Sf5#
- 2.Sxc6#
- 1...Qc3
- 2.Sf5#
- 2.Sxc6#
- 2.bxc3#
- 1...Qd3
- 2.Sf5#
- 2.Sxc6#
- 1...Qb4
- 2.Sf5#
- 2.Sxc6#
- 1...Qb5
- 2.Sf5#
- 1...Qb6
- 2.Sf5#
- 1...Qb7
- 2.Sf5#
- 1...Qb8
- 2.Sf5#
- 2.Sxc6#
- 1...Rd6
- 2.Sxb3#
- 2.Bxe5#
- 1...Bh7
- 2.Sxb3#
- 2.Sxc6#
- 1...c4!
- threat
- 1.Rxe5?
- threat
- 2.Rxd5#
- 1...Qe3+
- 2.dxe3#
- 1...Rxe5
- 2.Sxb3#
- 2.Sxc6#
- 2.Bxe5#
- 2.d8Q#
- 2.d8R#
- 1...Rxd7
- 2.Sxb3#
- 2.Sxc6#
- 2.Rd5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Re7#
- 2.Re8#
- 1...Rd6
- 2.Sxb3#
- 2.Rd5#
- 1...e3
- 2.Qg4#
- 2.dxe3#
- 1...Bxf7!
- threat
- 1.Qg1+?
- 1...Qe3+
- 2.Qxe3#
- 2.dxe3#
- 1...e3!
- 1...Qe3+
- 1.c3+?
- 1...Qxc3
- 2.dxc3#
- 1...Kd3!
- 1...Qxc3
- 1.d3?
- threat
- 2.Sxb3#
- 2.Sxc6#
- 1...Qxc2
- 2.Sxc6#
- 1...Qxc4
- 2.dxc4#
- 1...Qxb2
- 2.Sxc6#
- 1...Qxa3
- 2.Sxc6#
- 1...Qxd3
- 2.c3#
- 1...exd3
- 2.Qg4#
- 1...Rd6
- 2.Rxd6#
- 1...Qa2
- 2.Sxc6#
- 2.c3#
- 1...Qa4
- 2.c3#
- 1...Qc3
- 2.Sxc6#
- 2.bxc3#
- 1...Qb4
- 2.Sxc6#
- 1...Qb5
- 2.c3#
- 1...Qb6
- 2.c3#
- 1...Qb7
- 2.c3#
- 1...Qb8
- 2.Sxc6#
- 2.c3#
- 1...Rxd7!
- threat
- 1.Se3?
- Keys
- 1.Rd6!
- threat
- 2.Bxe5#
- 1...Qe3+
- 2.dxe3#
- 1...Qxc4
- 2.Sxc6#
- 1...Rxd6
- 2.Sxb3#
- 1...e3
- 2.Qg4#
- threat
- 1.Rd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(a);SBLOCK,XS(F)::S(G),XP(h)
- Q(a);CHECK,OGATE::QAR(A)+P(D)DCHECK,XQ(a)
- R(f);OGATEB::R(H),XR(f)
- P(d);OGATEB::QAR(A)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- Q(a);CHECK,OGATE,XS(F)::QAR(A)+P(D)DCHECK,XQ(a)
- Q(a);::S(F)
- Refutation
- P(e);
- Try
- R(H);XP(g)
- Threat
- B(I)+R(H),DCHECK,XR(f)
- Vars
- Q(a);CHECK,OGATE::QAR(A)+P(D)DCHECK,XQ(a)
- Refutation
- B(i);XB(L)
- Try
- Q(A);CHECK
- Refutation
- P(d);N_SPINP(g),P_SPINP(d)
- Try
- P(C);CHECK
- Vars
- Q(a);OGATE,XP(C)::QAR(A)+P(D)DCHECK,XQ(a)
- Refutation
- K(c);N_SPINP(g),P-FLIGHT
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(C)::S(G),XP(h)
- Q(a);OGATE,XS(F)::QAR(A)+P(D),XQ(a)
- Q(a);XP(B)::S(G),XP(h)
- Q(a);XR(E)::S(G),XP(h)
- Q(a);N_GUARD,P_SPINQ(a),XP(D)::P(C)
- P(d);N_SPINP(g),OGATEB,P_SPINP(d),XP(D)::QAR(A)
- R(f);OGATEB::R(H),XR(f)
- Q(a);N_GUARD::P(C)
- Q(a);::S(G),XP(h)
- Refutation
- R(f);XP(K)
- Try
- Actual
- R(H);P_PINR(f)
- Threat
- B(I),XP(g)
- Vars
- Q(a);CHECK,OGATE::QAR(A)+P(D)DCHECK,XQ(a)
- Q(a);SBLOCK,XS(F)::S(G),XP(h)
- R(f);N_SPINR(f),P_PINB(I),XR(H)::S(G),XQ(a)
- P(d);OGATEB::QAR(A)
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).