MESON Chess Problem Database
Problem Display
PID: 267725 (8/p7/K2pN3/p2Nrp2/4kp1b/1p6/1qbQPP1n/8 w - - 0 1)
Chernyavsky, Mykola Vasilovich
Yakimovich, Daniil
Problemist Ukraini, 2022
#2
6 + 12
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sc3#
- 2.Qd4#
- 1...Qa3
- 2.Sc3#
- 2.Qd4#
- 1...Qc3
- 2.Sxc3#
- 1...Qd4
- 2.Qxd4#
- 1...Qb1
- 2.Sc3#
- 2.Qd4#
- 1...Qa2
- 2.Sc3#
- 2.Qd4#
- 1...Rxd5
- 2.Qxf4#
- 1...Bd1
- 2.Qd3#
- 1...Bd3+
- 2.Qxd3#
- 1...Bxf2
- 2.Sf6#
- 2.Sg5#
- 1...Bg3
- 2.Sf6#
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- 1...Bf6
- 2.Sxf6#
- 1...Sf1
- 2.f3#
- 1...Sg4
- 2.f3#
- 1...Qc1
- Tries
- 1.Sb4?
- threat
- 2.Qxf4#
- 1...Bd3+
- 2.Qxd3#
- 1...Rxe6
- 2.Qd5#
- 1...Qc1
- 2.Qd4#
- 1...Bg3
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- 1...f3
- 2.Qe3#
- 2.Qf4#
- 1...axb4!
- threat
- 1.Sdxf4?
- threat
- 2.Qe3#
- 1...Bd3+
- 2.Qxd3#
- 1...Bxf2
- 2.Sg5#
- 1...Qc1
- 2.Qd4#
- 1...Qd4
- 2.Qxd4#
- 1...Sf1
- 2.f3#
- 1...Sg4
- 2.f3#
- 1...Qc3!
- threat
- 1.Sb6?
- threat
- 2.Qxf4#
- 1...Bd3+
- 2.Qxd3#
- 1...Rxe6
- 2.Qd5#
- 1...Qc1
- 2.Qd4#
- 1...Bg3
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- 1...f3
- 2.Qe3#
- 2.Qf4#
- 1...axb6!
- threat
- 1.Se7?
- threat
- 2.Qxf4#
- 1...Bd3+
- 2.Qxd3#
- 1...Rxe6
- 2.Qd5#
- 1...Qc1
- 2.Qd4#
- 1...Bg3
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- 1...f3
- 2.Qe3#
- 2.Qf4#
- 1...Bxe7!
- threat
- 1.Sexf4?
- threat
- 2.Qe3#
- 1...Bd3+
- 2.Qxd3#
- 1...Bxf2
- 2.Sf6#
- 1...Qc1
- 2.Sc3#
- 1...Qc3
- 2.Sxc3#
- 1...Sf1
- 2.f3#
- 1...Sg4
- 2.f3#
- 1...Qd4!
- threat
- 1.Sec7?
- threat
- 2.Qxf4#
- 1...Bd3+
- 2.Qxd3#
- 1...Rxd5
- 2.Qxd5#
- 1...Qc1
- 2.Sc3#
- 1...Bg3
- 2.Sf6#
- 1...f3
- 2.Qe3#
- 2.Qf4#
- 1...Bg5!
- threat
- 1.Sb4?
- Keys
- 1.Sdc7!
- threat
- 2.Qxf4#
- 1...Bd3+
- 2.Qxd3#
- 1...Rxe6
- 2.Qd5#
- 1...Qc1
- 2.Qd4#
- 1...Bg3
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- 1...f3
- 2.Qe3#
- 2.Qf4#
- threat
- 1.Sdc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- Q(a);N_GUARD::S(D),XQ(a)
- Q(a);N_GUARD::QAR1(A),XQ(a)
- R(i);SBLOCK,XS(D)::QAR1(A),XP(f)
- B(b);N_GUARD::QAB1(A)
- B(b);CHECK,N_GUARD::QAB1(A),XB(b)
- B(g);N_GUARD::S(F),XB(g)
- B(g);N_GUARD::S(D),XB(g)
- S(c);N_GUARD::P(C)
- Tries
- Try
- S(D);
- Threat
- QAR1(A),XP(f)
- Vars
- B(b);CHECK,N_GUARD::QAB1(A),XB(b)
- R(i);N_GUARD,XS(F)::QAB1(A)
- Q(a);N_GUARD::QAR1(A)
- B(g);N_GUARD::S(F)
- B(g);N_GUARD::S(F),XB(g)
- Refutation
- P(h);XS(D)
- Try
- S(D);XP(f)
- Threat
- QAR1(A)
- Vars
- B(b);CHECK,N_GUARD::QAB1(A),XB(b)
- B(g);N_GUARD,XP(C)::S(F)
- Q(a);N_GUARD::QAR1(A)
- Q(a);N_GUARD::QAR1(A),XQ(a)
- S(c);N_GUARD::P(C)
- Refutation
- Q(a);
- Try
- S(D);
- Threat
- QAR1(A),XP(f)
- Vars
- B(b);CHECK,N_GUARD::QAB1(A),XB(b)
- R(i);N_GUARD,XS(F)::QAB1(A)
- Q(a);N_GUARD::QAR1(A)
- B(g);N_GUARD::S(F)
- B(g);N_GUARD::S(F),XB(g)
- Refutation
- P(l);XS(D)
- Try
- S(D);
- Threat
- QAR1(A),XP(f)
- Vars
- B(b);CHECK,N_GUARD::QAB1(A),XB(b)
- R(i);N_GUARD,XS(F)::QAB1(A)
- Q(a);N_GUARD::QAR1(A)
- B(g);N_GUARD::S(F)
- B(g);N_GUARD::S(F),XB(g)
- Refutation
- B(g);XS(D)
- Try
- S(F);XP(f)
- Threat
- QAR1(A)
- Vars
- B(b);CHECK,N_GUARD::QAB1(A),XB(b)
- B(g);N_GUARD,XP(C)::S(D)
- Q(a);N_GUARD::S(D)
- Q(a);N_GUARD::S(D),XQ(a)
- S(c);N_GUARD::P(C)
- Refutation
- Q(a);
- Try
- S(F);
- Threat
- QAR1(A),XP(f)
- Vars
- B(b);CHECK,N_GUARD::QAB1(A),XB(b)
- R(i);OGATE,XS(D)::QAB1(A),XR(i)
- Q(a);N_GUARD::S(D)
- B(g);N_GUARD::S(D)
- Refutation
- B(g);
- Try
- Actual
- S(D);
- Threat
- QAR1(A),XP(f)
- Vars
- B(b);CHECK,N_GUARD::QAB1(A),XB(b)
- R(i);N_GUARD,XS(F)::QAB1(A)
- Q(a);N_GUARD::QAR1(A)
- B(g);N_GUARD::S(F)
- B(g);N_GUARD::S(F),XB(g)
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).