MESON Chess Problem Database
Problem Display
PID: 271671 (3K4/1B2R3/N2P1nP1/p2PN1R1/4k1p1/4r3/qp6/3Q2B1 w - - 0 1)
Kapustin, Fedor Mikhailovich
Lyubashevsky, Leonid Abramovic
4th Comm., Buletin Problemistic, 1982
#2
11 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qa4#
- 1...Qxd5
- 2.Qa4#
- 1...Qa4
- 2.Qxa4#
- 1...Re1
- 2.Sd3#
- 2.Qd4#
- 1...Re2
- 2.Qd4#
- 1...Ra3
- 2.Sd3#
- 2.Qd4#
- 1...Rb3
- 2.Sd3#
- 2.Qd4#
- 1...Rc3
- 2.Sd3#
- 2.Qd4#
- 1...Rd3
- 2.Sxd3#
- 1...Rf3
- 2.Sd3#
- 2.Qd4#
- 1...Rg3
- 2.Sd3#
- 2.Qd4#
- 1...Rh3
- 2.Sd3#
- 2.Qd4#
- 1...Sxd5
- 2.Qxg4#
- 1...Sd7
- 2.Qxg4#
- 1...Sh7
- 2.Qxg4#
- 1...Se8
- 2.Qxg4#
- 1...Sg8
- 2.Qxg4#
- 1...Qb1
- Tries
- 1.Bxe3?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd3#
- 2.Qd4#
- 1...Qxd5
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.Sd7#
- 2.Sf7#
- 2.Qd3#
- 2.Qd4#
- 1...Sxd5
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.Sd7#
- 2.Sf7#
- 2.Qd3#
- 2.Qd4#
- 1...b1Q
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd4#
- 1...b1B
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd4#
- 1...Qb1
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd4#
- 1...Qb3
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd4#
- 1...Qc4
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sxg4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 1...Qa3
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd4#
- 1...Qa4
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd3#
- 1...Sd7
- 2.Sxd7#
- 2.Qd3#
- 2.Qd4#
- 1...Sg8
- 2.Qd3#
- 2.Qd4#
- 1...g3
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sd7#
- 2.Sf7#
- 2.Qf3#
- 2.Qd3#
- 2.Qd4#
- 1...Kxe3!
- threat
- 1.Rxg4+?
- 1...Sxg4
- 2.Qxg4#
- 1...Kf5!
- 1...Sxg4
- 1.Qa4+?
- 1...Qc4
- 2.Qxc4#
- 1...Qxa4!
- 1...Qc4
- 1.Qd3+?
- 1...Kf4
- 2.Qxe3#
- 1...Rxd3!
- 1...Kf4
- 1.g7?
- threat
- 2.Sg6#
- 1...Re2
- 2.Qd4#
- 1...Sd7
- 2.Qxg4#
- 1...Sg8
- 2.Qxg4#
- 1...Kf4!
- threat
- 1.Bxe3?
- Keys
- 1.Qf1!
- threat
- 2.Sc6#
- 1...Kd4
- 2.Qd3#
- 1...Qxd5
- 2.Qc4#
- 1...Sxd5
- 2.Rxg4#
- 1...Re2
- 2.Sc5#
- 2.Qf5#
- 1...Rf3
- 2.Sd3#
- 1...Sd7
- 2.Rxg4#
- 1...Sg8
- 2.Rxg4#
- threat
- 1.Qf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(a);N_GUARD::QAR(A)
- Q(a);N_GUARD,P_PINP(G),P_SPINQ(a),XP(C)::QAR(A)
- Q(a);N_GUARD::QAR(A),XQ(a)
- R(c);::QAR1(A)
- R(c);::R(J)+S(D),XR(c)
- S(g);N_GUARD,P_SPINS(g),XP(C)::QAR2(A),XP(e)
- S(g);N_GUARD::QAR2(A),XP(e)
- Tries
- Try
- B(B);XR(c)
- Threat
- DUALS(9)
- Refutation
- K(d);P-FLIGHT,XB(B)
- Try
- R(E);CHECK,XP(e)
- Vars
- S(g);OGATE,XR(E)::QAR2(A),XS(g)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- Q(a);N_GUARD,P_SPINQ(a)::QAR2(A),XQ(a)
- Refutation
- Q(a);XQ(A)
- Try
- Q(A);CHECK
- Vars
- K(d);P-FLIGHT::QAB1(A),XR(c)
- Refutation
- R(c);XQ(A)
- Try
- P(H);
- Threat
- R(J)+S(D)
- Vars
- R(c);::QAR1(A)
- S(g);N_GUARD::QAR2(A),XP(e)
- Refutation
- K(d);P-FLIGHT
- Try
- Actual
- Q(A);
- Threat
- R(J)+S(D)
- Vars
- K(d);N_GUARD,P-FLIGHT,P_SPINR(c)::QAR1(A)
- Q(a);N_GUARD,P_PINP(G),P_SPINQ(a),XP(C)::QAR2(A)
- S(g);N_GUARD,P_SPINS(g),XP(C)::R(E),XP(e)
- R(c);::R(J)+S(D)
- S(g);N_GUARD::R(E),XP(e)
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).