MESON Chess Problem Database
Problem Display
PID: 242116 (1r3R2/1p1Q1nr1/B5NP/2P3pK/4k1p1/R1b4P/1n3B2/3N4 w - - 0 1)
Chernyavsky, Mykola Vasilovich
Murashev, Pavel Aleksandrovich
1st HM., StrateGems, 2020
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Kf3
- 2.Qxg4#
- 2.Qd5#
- 1...Ra8
- 2.Bxb7#
- 1...Rd8
- 2.Bxb7#
- 1...Re8
- 2.Bxb7#
- 1...Rxf8
- 2.Bxb7#
- 1...Be1
- 2.Re3#
- 1...Bb4
- 2.Re3#
- 1...Ba5
- 2.Re3#
- 1...Be5
- 2.Re3#
- 1...Bf6
- 2.Re3#
- 1...Sxd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Se5
- 2.Sxc3#
- 1...Sd6
- 2.Sxc3#
- 1...Sxh6
- 2.Sxc3#
- 1...Sd8
- 2.Sxc3#
- 2.Qf5#
- 1...Sh8
- 2.Sxc3#
- 2.Qf5#
- 1...Kf3
- Tries
- 1.Se3?
- threat
- 2.Qxg4#
- 2.Qd5#
- 1...Kf3
- 2.Qf5#
- 1...Sxh6
- 2.Qd5#
- 1...gxh3
- 2.Qg4#
- 2.Qd5#
- 1...bxa6
- 2.Qd5#
- 1...Rd8
- 2.Bxb7#
- 2.Qxg4#
- 1...Be5
- 2.Qd5#
- 1...Sd3
- 2.Qd5#
- 1...Sc4
- 2.Qd5#
- 1...Se5
- 2.Qd5#
- 1...Sd6
- 2.Qxg4#
- 1...g3
- 2.Qg4#
- 2.Qd5#
- 1...b5
- 2.Qd5#
- 1...Rxg6!
- threat
- 1.Se7?
- threat
- 2.Qf5#
- 1...Kf3
- 2.Qxg4#
- 1...Kf4
- 2.Qf5#
- 1...Ke5
- 2.Qf5#
- 1...Sxh6
- 2.Qd5#
- 1...Sd6!
- threat
- 1.Bd3+?
- 1...Kf3
- 2.Qxg4#
- 2.Qd5#
- 1...Sxd3!
- 1...Kf3
- 1.Rxc3?
- threat
- 2.Re3#
- 1...Sxd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sd6
- 2.Qe6#
- 1...Sc4
- 2.Qd3#
- 1...Rxg6!
- threat
- 1.Rxf7?
- threat
- 2.Sxc3#
- 2.Qf5#
- 1...Rxg6
- 2.Qf5#
- 1...Sxd1
- 2.Bd3#
- 2.Qf5#
- 2.Qd3#
- 1...Be1
- 2.Re3#
- 2.Qf5#
- 2.Qe6#
- 2.Qd4#
- 1...Bd2
- 2.Qf5#
- 2.Qe6#
- 2.Qd4#
- 1...Bb4
- 2.Re3#
- 2.Qf5#
- 2.Qe6#
- 2.Qd4#
- 1...Bd4
- 2.Qf5#
- 2.Qxd4#
- 1...Ba5
- 2.Re3#
- 2.Qf5#
- 2.Qe6#
- 2.Qd4#
- 1...Be5
- 2.Re3#
- 1...Bf6
- 2.Re3#
- 1...Sa4
- 2.Bd3#
- 2.Qf5#
- 2.Qd3#
- 1...Rxf7!
- threat
- 1.Re8+?
- 1...Kf3
- 2.Qxg4#
- 2.Qd5#
- 1...Rxe8
- 2.Bxb7#
- 1...Be5
- 2.Re3#
- 1...Se5!
- 1...Kf3
- 1.Qc6+?
- 1...Kf5
- 2.Se3#
- 2.hxg4#
- 1...bxc6!
- 1...Kf5
- 1.Qe6+?
- 1...Kf3
- 2.Qxg4#
- 2.Qd5#
- 1...Se5
- 2.Sxc3#
- 1...Be5!
- 1...Kf3
- 1.Se3?
- Keys
- 1.hxg4!
- threat
- 2.Qf5#
- 1...Kf3
- 2.Qd5#
- 1...Sxh6
- 2.Sxc3#
- 1...Be5
- 2.Re3#
- 1...Se5
- 2.Sxc3#
- 1...Sd6
- 2.Sxc3#
- threat
- 1.hxg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- R(i);N_GUARD::B(G),XP(f)
- R(i);N_GUARD,XR(K)::B(G),XP(f)
- B(b);OGATE::R1(C)
- S(a);N_GUARD,XS(A)::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(a);N_GUARD::QAB1(J)
- S(g);::S(A),XB(b)
- S(g);XP(I)::S(A),XB(b)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- K(c);P_SPINS(g),S_FLIGHT::QAR2(J)
- S(g);XP(I)::QAB1(J)
- P(f);XB(G)::QAB1(J)
- B(b);::QAB1(J)
- S(a);::QAB1(J)
- S(g);::QAB1(J)
- S(g);::QAR2(J),XP(d)
- P(f);::QAB1(J)
- Refutation
- R(h);XS(H)
- Try
- S(H);
- Threat
- QAB1(J)
- Vars
- K(c);P_SPINB(b),P_SPINS(g),S_FLIGHT::QAB1(J),XP(d)
- K(c);P-FLIGHT,P_SPINS(g)::QAR1(J)
- K(c);P-FLIGHT::QAR1(J)
- S(g);XP(I)::QAB1(J)
- Refutation
- S(g);
- Try
- B(G);CHECK
- Refutation
- S(a);XB(G)
- Try
- R(C);XB(b)
- Threat
- R1(C)
- Vars
- S(a);N_GUARD,XS(A)::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(g);N_GUARD::QAR2(J)
- S(a);N_GUARD::QAB1(J)
- Refutation
- R(h);XS(H)
- Try
- R(K);XS(g)
- Threat
- DUALS(2)
- Vars
- R(h);XS(H)::QAB1(J)
- B(b);OGATE::R1(C)
- Refutation
- R(h);XR(K)
- Try
- R(K);CHECK
- Vars
- R(i);XR(K)::B(G),XP(f)
- B(b);OGATE,P_SPINB(b)::R1(C)
- Refutation
- S(g);P_SPINS(g)
- Try
- Q(J);CHECK
- Refutation
- P(f);XQ(J)
- Try
- Q(J);CHECK
- Vars
- S(g);P_SPINS(g)::S(A),XB(b)
- Refutation
- B(b);P_SPINB(b)
- Try
- Actual
- P(D);XP(d)
- Threat
- QAB1(J)
- Vars
- K(c);P_SPINB(b),P_SPINS(g),S_FLIGHT::QAB(J)
- S(g);XP(I)::S(A),XB(b)
- B(b);OGATE::R1(C)
- S(g);::S(A),XB(b)
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).