MESON Chess Problem Database
Problem Display
PID: 255572 (5Nb1/P1Pr4/Q6p/1pP1P1rR/3k1B2/8/p2NPP2/2R2KbB w - - 0 1)
Chernyavsky, Mykola Vasilovich
Doukhan, Gerard
Problemist Ukraini, 2021
#2
14 + 8
SOLUTION
- SOUND
- Sets
- 1...Rg4
- 2.Be3#
- 1...Rxe5
- 2.Bxe5#
- 1...Rg6
- 2.Be3#
- 1...Rgg7
- 2.Be3#
- 1...Rd5
- 2.Sb3#
- 1...Rf7
- 2.Sb3#
- 2.Se6#
- 2.Qd6#
- 1...Bb3
- 2.Sxb3#
- 1...Be6
- 2.Sxe6#
- 1...Bh7
- 2.Sb3#
- 2.Se6#
- 1...a1Q
- 2.Qxa1#
- 1...a1S
- 2.Qxa1#
- 1...a1B
- 2.Qxa1#
- 1...a1R
- 2.Qxa1#
- 1...b4
- 2.Qd3#
- 2.e3#
- 1...Rg4
- Tries
- 1.Sf3+?
- 1...Kd5
- 2.Qb7#
- 2.a8Q#
- 2.a8B#
- 1...Ke4!
- 1...Kd5
- 1.Qxb5?
- threat
- 2.Qd3#
- 2.Qb2#
- 2.e3#
- 1...Rxe5
- 2.Bxe5#
- 2.Qd3#
- 2.Qb2#
- 1...Bxf2
- 2.Qd3#
- 2.Qb2#
- 1...Rg2
- 2.Qd3#
- 1...a1Q
- 2.Qd3#
- 2.e3#
- 1...a1B
- 2.Qd3#
- 2.e3#
- 1...Bb3
- 2.Sxb3#
- 2.Qd3#
- 2.e3#
- 1...Bc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Bh7
- 2.Sb3#
- 2.Se6#
- 2.Rc4#
- 2.Qa4#
- 2.Qc4#
- 2.Qxd7#
- 2.Qb2#
- 2.Qb4#
- 2.e3#
- 1...Rg3!
- threat
- 1.Qa3?
- threat
- 2.Qb2#
- 2.Qc3#
- 2.Qd3#
- 2.Qe3#
- 2.e3#
- 1...Rxe5
- 2.Bxe5#
- 2.Qb2#
- 2.Qc3#
- 2.Qd3#
- 1...Bxf2
- 2.Qb2#
- 2.Qc3#
- 2.Qd3#
- 1...Rg2
- 2.Qd3#
- 1...a1Q
- 2.Qxa1#
- 2.Qd3#
- 2.Qe3#
- 2.e3#
- 1...a1B
- 2.Qxa1#
- 2.Qd3#
- 2.Qe3#
- 2.e3#
- 1...Bb3
- 2.Sxb3#
- 2.Qb2#
- 1...Bc4
- 2.Qe3#
- 1...Bh7
- 2.Sb3#
- 2.Se6#
- 2.Qb2#
- 2.Qb4#
- 2.Qc3#
- 2.Qe3#
- 2.e3#
- 1...b4
- 2.Qb2#
- 2.Qd3#
- 2.Qe3#
- 2.e3#
- 1...Rg3!
- threat
- 1.Qb6?
- threat
- 2.c6#
- 1...Rxe5
- 2.Bxe5#
- 1...Rd5
- 2.Sb3#
- 1...Rg2!
- threat
- 1.Qc6?
- threat
- 2.Sf3#
- 2.Qe4#
- 1...Rxe5
- 2.Sf3#
- 2.Bxe5#
- 1...Rg3
- 2.Qe4#
- 1...Rd5
- 2.Sb3#
- 1...Bc4
- 2.Sf3#
- 1...Bh7
- 2.Sb3#
- 2.Sf3#
- 2.Se6#
- 2.Qxd7#
- 1...Bd5!
- threat
- 1.Qd6+?
- 1...Bd5
- 2.Sb3#
- 2.Se6#
- 2.Be3#
- 1...Rxd6!
- 1...Bd5
- 1.Qe6?
- threat
- 2.Sb3#
- 2.Be3#
- 1...Rxe5
- 2.Sb3#
- 2.Bxe5#
- 2.Qxe5#
- 1...Bxf2
- 2.Sb3#
- 1...Bxe6
- 2.Sxe6#
- 1...a1S
- 2.Be3#
- 1...Rg2
- 2.Be3#
- 1...Rg3!
- threat
- 1.Qf6?
- threat
- 2.Be3#
- 1...Rg2
- 2.e6#
- 1...Rg3
- 2.e6#
- 1...Bxf2!
- threat
- 1.c6?
- threat
- 2.Qb6#
- 1...Rxe5
- 2.Bxe5#
- 1...Rd5
- 2.Sb3#
- 1...Rg2!
- threat
- 1.Sf3+?
- Keys
- 1.e6!
- threat
- 2.Sb3#
- 1...Bxe6
- 2.Sxe6#
- 1...a1S
- 2.Qxa1#
- 1...Rg3
- 2.Be5#
- 1...Rg2
- 2.Be3#
- threat
- 1.e6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- R(e);::B(G)
- R(e);OGATE,XP(I)::B(G),XR(e)
- R(g);S_CUTB(h)::S(D)
- B(h);N_GUARD::S(D),XB(h)
- B(h);N_GUARD::S(N),XB(h)
- P(b);OGATE,P_PINR(A)::QAB(K),XQ(b)
- P(b);OGATE::QAB(K),XS(b)
- P(b);OGATE::QAB(K),XB(b)
- P(b);OGATE,P_PINR(A)::QAB(K),XR(b)
- Tries
- Try
- S(D);CHECK
- Refutation
- K(c);P-FLIGHT
- Try
- Q(K);XP(d)
- Threat
- DUALS(3)
- Vars
- R(e);::QAR1(K)
- Refutation
- R(e);
- Try
- Q(K);
- Threat
- DUALS(5)
- Vars
- R(e);::QAR1(K)
- B(h);P_PINP(E)::QAB1(K)
- Refutation
- R(e);
- Try
- Q(K);
- Threat
- QAB(K)+P(H)
- Vars
- R(e);OGATE,XP(I)::B(G),XR(e)
- R(g);S_CUTB(h)::S(D)
- Refutation
- R(e);
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- R(e);::QAR1(K)
- R(g);S_CUTB(h)::S(D)
- B(h);P_PINP(E)::S(D)
- Refutation
- B(h);
- Try
- Q(K);CHECK
- Refutation
- R(g);XQ(K)
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- B(a);XP(F)::S(D)
- B(h);XQ(K)::S(N),XB(h)
- P(b);::B(G)
- R(e);::B(G)
- Refutation
- R(e);
- Try
- Q(K);
- Threat
- B(G)
- Vars
- R(e);N_GUARD::QAB(K)+P(I)
- Refutation
- B(a);XP(F)
- Try
- P(H);
- Threat
- QAB(K)
- Vars
- R(e);OGATE,XP(I)::B(G),XR(e)
- R(g);S_CUTB(h)::S(D)
- Refutation
- R(e);
- Try
- Actual
- P(I);
- Threat
- S(D)
- Vars
- B(h);XP(I)::S(N),XB(h)
- P(b);OGATE::QAB(K),XS(b)
- R(e);N_GUARD::B(G)
- R(e);::B(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).