MESON Chess Problem Database
Problem Display
PID: 212987 (K4Q2/8/2N1P1pp/2R1Pp2/1p2kpPR/1Pr1p3/2P3P1/1BB3N1 w - - 0 1)
Zamanov, Vidadi
64 Shakhmatnoe obozrenie, 2020
#2
14 + 8
SOLUTION
- SOUND
- Sets
- 1...Rxc2
- 2.Bxc2#
- 1...Rxb3
- 2.cxb3#
- 1...Rd3
- 2.cxd3#
- 1...Rc4
- 2.c3#
- 1...Rxc5
- 2.c4#
- 1...f3
- 2.gxf5#
- 1...g5
- 2.Qxf5#
- 1...Rxc2
- Tries
- 1.Se2?
- 1...Rxc2
- 2.Bxc2#
- 1...Rxb3
- 2.cxb3#
- 1...Rxc5
- 2.c4#
- 1...fxg4
- 2.Qxf4#
- 1...Rd3
- 2.cxd3#
- 1...Rc4
- 2.c3#
- 1...f3
- 2.gxf5#
- 1...g5
- 2.Qxf5#
- 1...h5!
- 1...Rxc2
- 1.Rc4+?
- 1...Kd5
- 2.Qd6#
- 1...Rxc4!
- 1...Kd5
- 1.Qd6?
- threat
- 2.Qd4#
- 2.Qd5#
- 1...Rxc5
- 2.Qd3#
- 2.Qd4#
- 2.c3#
- 2.c4#
- 1...f3
- 2.Qd4#
- 1...Rd3
- 2.Qxd3#
- 2.cxd3#
- 1...Rc4
- 2.Rxc4#
- 2.Qd3#
- 2.Qd5#
- 2.c3#
- 1...fxg4!
- threat
- 1.Qxh6?
- 1...Rxc2
- 2.Bxc2#
- 1...Rxb3
- 2.cxb3#
- 1...Rxc5
- 2.c4#
- 1...fxg4
- 2.Qxg6#
- 1...e2
- 2.Qxf4#
- 1...Rd3
- 2.cxd3#
- 1...Rc4
- 2.c3#
- 1...f3
- 2.gxf3#
- 1...g5!
- 1...Rxc2
- 1.Qd8?
- threat
- 2.Qd4#
- 2.Qd5#
- 1...Rxc5
- 2.Qd3#
- 2.Qd4#
- 2.c3#
- 2.c4#
- 1...f3
- 2.Qd4#
- 1...Rd3
- 2.Qxd3#
- 2.cxd3#
- 1...Rc4
- 2.Rxc4#
- 2.Qd3#
- 2.Qd5#
- 2.c3#
- 1...fxg4!
- threat
- 1.Se2?
- Keys
- 1.Sh3!
- 1...Rxc2
- 2.Bxc2#
- 1...Rxb3
- 2.cxb3#
- 1...Rxc5
- 2.c4#
- 1...fxg4
- 2.Qxf4#
- 1...e2
- 2.Sf2#
- 1...Rd3
- 2.cxd3#
- 1...Rc4
- 2.c3#
- 1...f3
- 2.gxf5#
- 1...g5
- 2.Qxf5#
- 1...h5
- 2.Sg5#
- 1...Rxc2
- 1.Sh3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(a);OGATE,P_SPINR(a),XP(D)::B(A),XR(a)
- R(a);OGATE,XP(F)::B(A)+P(D),XR(a)
- R(a);OGATE::P(D),XR(a)
- R(a);OGATE::B(A)+P(D)
- R(a);OGATE,XR(I)::B(A)+P(D)
- P(e);::R(H)+P(G),XP(f)
- P(g);N_GUARD::QAB1(N),XP(f)
- Tries
- Try
- S(C);
- Vars
- R(a);OGATE,P_SPINR(a),XP(D)::B(A),XR(a)
- R(a);OGATE,XP(F)::B(A)+P(D),XR(a)
- R(a);OGATE,XR(I)::B(A)+P(D)
- P(f);OGATE,XP(G)::QAR1(N),XP(e)
- R(a);OGATE::P(D),XR(a)
- R(a);OGATE::B(A)+P(D)
- P(e);::R(H)+P(G),XP(f)
- P(g);N_GUARD::QAB1(N),XP(f)
- Refutation
- P(h);
- Try
- R(I);CHECK
- Vars
- K(d);S_FLIGHT::QAR1(N)
- Refutation
- R(a);XR(I)
- Try
- Q(N);
- Threat
- DUALS(2)
- Vars
- P(e);::QAR1(N)
- Refutation
- P(f);XP(G)
- Try
- Q(N);XP(h)
- Vars
- R(a);OGATE,P_SPINR(a),XP(D)::B(A),XR(a)
- R(a);OGATE,XP(F)::B(A)+P(D),XR(a)
- R(a);OGATE,XR(I)::B(A)+P(D)
- P(f);OGATEB,XP(G)::QAB(N),XP(g)
- P(b);::QAR1(N),XP(e)
- R(a);OGATE::P(D),XR(a)
- R(a);OGATE::B(A)+P(D)
- P(e);OGATE::P(E),XP(e)
- Refutation
- P(g);
- Try
- Q(N);
- Threat
- DUALS(2)
- Vars
- P(e);::QAR1(N)
- Refutation
- P(f);XP(G)
- Try
- Actual
- S(C);
- Vars
- R(a);OGATE,P_SPINR(a),XP(D)::B(A),XR(a)
- R(a);OGATE,XP(F)::B(A)+P(D),XR(a)
- R(a);OGATE,XR(I)::B(A)+P(D)
- P(f);OGATE,XP(G)::QAR1(N),XP(e)
- P(b);N_GUARD::S(C)
- R(a);OGATE::P(D),XR(a)
- R(a);OGATE::B(A)+P(D)
- P(e);::R(H)+P(G),XP(f)
- P(g);N_GUARD::QAB1(N),XP(f)
- P(h);N_GUARD::S(C)
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).