MESON Chess Problem Database
Problem Display
PID: 26660 (3KB3/8/1pR2B1p/1p1k1Np1/1Pr1R2q/1N1n2P1/Q7/1n2r3 w - - 0 1)
Gulyaev, Aleksandr Pavlovich (aka Grin, AP)
Comm., Shakhmaty v SSSR, 1962
#2
10 + 10
| 2988 | Izbrannie Kompozitsi | 1985 |
SOLUTION
- SOUND
- Sets
- 1...Qxe4
- 2.Rd6#
- 1...Rexe4
- 2.Rd6#
- 1...Rcxe4
- 2.Sbd4#
- 1...Rc5
- 2.Sxc5#
- 1...Rxc6
- 2.Sc5#
- 1...Qxe4
- Tries
- 1.Sd2?
- threat
- 2.Se7#
- 2.Rd6#
- 1...Qxg3
- 2.Se7#
- 2.Rd4#
- 1...Qxe4
- 2.Rd6#
- 1...Rxe4
- 2.Rd6#
- 1...Sxb4
- 2.Se7#
- 1...Qf4
- 2.Se7#
- 1...Sxd2!
- threat
- 1.Bf7+?
- 1...Kxc6
- 2.Qa8#
- 1...Kxe4!
- 1...Kxc6
- 1.Rc5+?
- 1...Kxe4
- 2.Bc6#
- 2.Qg2#
- 2.Qa8#
- 1...Rxc5
- 2.Sxc5#
- 1...bxc5
- 2.Qa8#
- 1...Sxc5!
- 1...Kxe4
- 1.Rce6?
- threat
- 2.Se7#
- 1...Qxe4
- 2.Rd6#
- 1...Rexe4
- 2.Rd6#
- 1...Rcxe4
- 2.Sbd4#
- 1...Rd4
- 2.Sbxd4#
- 1...Se5
- 2.R6xe5#
- 1...Rc7
- 2.Sc5#
- 1...Rc8+!
- threat
- 1.Qg2?
- threat
- 2.Se7#
- 2.Rd4#
- 2.Re5#
- 2.Rd6#
- 1...Qxg3
- 2.Se7#
- 2.Rd4#
- 2.Re5#
- 1...Qxe4
- 2.Se7#
- 2.Rd6#
- 1...Rexe4
- 2.Se3#
- 2.Se7#
- 2.Rd6#
- 1...Rcxe4
- 2.Se7#
- 1...Qf4
- 2.Se7#
- 2.Rd4#
- 2.Re5#
- 1...Rd4
- 2.Se7#
- 2.Rxd4#
- 2.Re5#
- 1...Rc5
- 2.Se7#
- 2.Rd4#
- 2.Rd6#
- 1...Se5
- 2.Se7#
- 2.Rd4#
- 2.Rxe5#
- 2.Rd6#
- 1...Rxc6!
- threat
- 1.Qa8?
- threat
- 2.Rcxc4#
- 2.Rc5#
- 2.Rd6#
- 1...Kxe4
- 2.Rc5#
- 1...Qxe4
- 2.Rd6#
- 1...Rexe4
- 2.Rd6#
- 1...Rxb4
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rc5#
- 2.Rxb6#
- 2.Rd6#
- 2.Rce6#
- 2.Rc7#
- 2.Rc8#
- 1...Rxc6
- 2.Bxc6#
- 2.Qxc6#
- 1...Sxb4
- 2.Rc5#
- 2.Rd6#
- 1...Rcc1
- 2.Rxc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rc5#
- 2.Rd6#
- 1...Rc2
- 2.Rxc2#
- 2.Rc3#
- 2.Rcc4#
- 2.Rc5#
- 2.Rd6#
- 1...Rc3
- 2.Rxc3#
- 2.Rcc4#
- 2.Rc5#
- 2.Rd6#
- 1...Rd4
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc5#
- 2.Rc7#
- 2.Rc8#
- 1...Rc5
- 2.Rxc5#
- 2.Rd6#
- 1...Sc5
- 2.Rxc5#
- 2.Rd6#
- 1...Se5
- 2.Rd6#
- 1...Rcxe4!
- threat
- 1.Sd2?
- Keys
- 1.Bg6!
- threat
- 2.Se7#
- 1...Kxe4
- 2.Qg2#
- 1...Kxc6
- 2.Qa8#
- 1...Qxe4
- 2.Rd6#
- 1...Rexe4
- 2.Rd6#
- 1...Rcxe4
- 2.Sbd4#
- 1...Rxc6
- 2.Sc5#
- threat
- 1.Bg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- Q(e);SBLOCK,XR(E)::R1(G)
- R(b);SBLOCK,XR(E)::R1(G)
- R(d);SBLOCK,XR(E)::QAB(A)+S(B)
- R(d);::QAB(A)+S(B),XR(d)
- R(d);XR(G)::QAB(A)+S(B)
- Tries
- Try
- S(B);P_PINR(d)
- Threat
- DUALS(2)
- Vars
- Q(e);XR(E)::R1(G)
- R(b);XR(E)::R1(G)
- S(c);XP(D)::S(F)
- Q(e);::S(F)
- Refutation
- S(a);XS(B)
- Try
- B(J);CHECK
- Vars
- K(g);S_FLIGHT,XR(G)::QAB(A)
- Refutation
- K(g);S_FLIGHT,XR(E)
- Try
- R(G);CHECK
- Vars
- R(d);XR(G)::QAB(A)+S(B),XR(d)
- P(i);XR(G)::QAB(A)
- Refutation
- S(c);XR(G)
- Try
- R(G);
- Threat
- S(F)
- Vars
- Q(e);SBLOCK,XR(E)::R1(G)
- R(b);SBLOCK,XR(E)::R1(G)
- R(d);XR(E)::QAB(A)+S(B)
- R(d);::QAB(A)+S(B),XR(d)
- S(c);N_GUARD::R1(G),XS(c)
- R(d);::QAB(A)+S(B)
- Refutation
- R(d);CHECK
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(d);P_SPINR(d),XR(E)::S(F)
- Refutation
- R(d);XR(G)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- K(g);S_FLIGHT,XR(E)::QAB(A)+R(G)
- Q(e);SBLOCK,XR(E)::QAB(A)+R(G),DCHECK
- R(b);SBLOCK,XR(E)::QAB(A)+R(G),DCHECK
- S(c);::QAB(A)+R(G),DCHECK
- Refutation
- R(d);XR(E)
- Try
- Actual
- B(J);
- Threat
- S(F)
- Vars
- K(g);OGATEB,S_FLIGHT,XR(E)::QAB(A)
- K(g);OGATEB,S_FLIGHT,XR(G)::QAB(A)
- Q(e);SBLOCK,XR(E)::R1(G)
- R(b);SBLOCK,XR(E)::R1(G)
- R(d);SBLOCK,XR(E)::QAB(A)+S(B)
- R(d);SBLOCK,XR(G)::QAB(A)+S(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).