MESON Chess Problem Database
Problem Display
PID: 74949 (2R5/1n1pP2B/4p1Np/1pPk1NPp/2p1R1P1/5n2/P2p1K2/2bQ4 w - - 0 1)
Janevski, Zivko
Problem Online, 2007
#2
12 + 11
SOLUTION
- SOUND
- Sets
- 1...Kxe4
- 2.Qxf3#
- 1...Se1
- 2.Rd4#
- 2.Re5#
- 1...Sg1
- 2.Rd4#
- 2.Re5#
- 1...Sh2
- 2.Rd4#
- 2.Re5#
- 1...Sd4
- 2.Rxd4#
- 2.Re5#
- 1...Sh4
- 2.Rd4#
- 2.Re5#
- 1...Se5
- 2.Rd4#
- 2.Rxe5#
- 1...Sxg5
- 2.Rd4#
- 2.Re5#
- 1...Kxe4
- Tries
- 1.Ke3?
- threat
- 2.Sf4#
- 1...e5
- 2.Bg8#
- 1...hxg5!
- threat
- 1.Kxf3?
- threat
- 2.Se3#
- 2.Sf4#
- 2.Rd4#
- 2.Re5#
- 1...Sxc5
- 2.Sf4#
- 2.Rd4#
- 2.Re5#
- 1...exf5
- 2.Sf4#
- 2.Bg8#
- 1...hxg5
- 2.Se3#
- 2.Rd4#
- 2.Re5#
- 1...e5
- 2.Bg8#
- 2.Rxe5#
- 1...Bb2
- 2.Se3#
- 2.Sf4#
- 1...c3
- 2.Se3#
- 2.Sf4#
- 2.Rd4#
- 2.Qb3#
- 1...d6
- 2.Se3#
- 2.Sf4#
- 2.Rd4#
- 1...hxg4+!
- threat
- 1.Re3?
- threat
- 2.Sf4#
- 2.Qxf3#
- 1...Sxg5
- 2.Sf4#
- 2.Re5#
- 1...Sxc5
- 2.Sf4#
- 1...hxg4
- 2.Sf4#
- 1...hxg5
- 2.Qxf3#
- 1...c3
- 2.Qb3#
- 1...e5
- 2.Bg8#
- 1...Se1
- 2.Sf4#
- 2.Re5#
- 1...Sg1
- 2.Sf4#
- 2.Re5#
- 1...Sh2
- 2.Sf4#
- 2.Re5#
- 1...Sd4
- 2.Sf4#
- 2.Re5#
- 1...Sh4
- 2.Sf4#
- 2.Re5#
- 1...Se5
- 2.Sf4#
- 2.Rxe5#
- 1...Sd6
- 2.Sf4#
- 1...exf5!
- threat
- 1.Rf4?
- threat
- 2.Se3#
- 2.Qxf3#
- 1...Sxg5
- 2.Se3#
- 2.Rd4#
- 1...hxg4
- 2.Se3#
- 1...exf5
- 2.Bg8#
- 1...e5
- 2.Bg8#
- 1...Se1
- 2.Se3#
- 2.Rd4#
- 1...Sg1
- 2.Se3#
- 2.Rd4#
- 1...Sh2
- 2.Se3#
- 2.Rd4#
- 1...Sd4
- 2.Se3#
- 2.Rxd4#
- 1...Sh4
- 2.Se3#
- 2.Rd4#
- 1...Se5
- 2.Se3#
- 2.Rd4#
- 1...Sd6
- 2.Se3#
- 1...Sxc5!
- threat
- 1.Rxe6?
- threat
- 2.Sf4#
- 1...Kxe6
- 2.Bg8#
- 1...dxe6
- 2.Qxf3#
- 1...Se5
- 2.Rxe5#
- 1...c3
- 2.Qb3#
- 1...hxg5!
- threat
- 1.Qxf3?
- threat
- 2.Se3#
- 2.Sf4#
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Sxc5
- 2.Sf4#
- 2.Rd4#
- 2.Re5#
- 1...hxg4
- 2.Se3#
- 2.Sf4#
- 2.Rd4#
- 2.Rxg4#
- 2.Re5#
- 1...exf5
- 2.Sf4#
- 2.Bg8#
- 2.Qxf5#
- 1...hxg5
- 2.Se3#
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...e5
- 2.Bg8#
- 2.Rxe5#
- 1...d1Q
- 2.Re2#
- 2.Rd4#
- 2.Re5#
- 1...d1B
- 2.Re2#
- 2.Rd4#
- 2.Re5#
- 1...d1R
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Sd6
- 2.Se3#
- 2.Sf4#
- 2.Rd4#
- 2.Re5#
- 1...c3
- 2.Se3#
- 2.Sf4#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Rf4#
- 2.Qd3#
- 1...d1S+!
- threat
- 1.Qxd2+?
- 1...Kxe4
- 2.Sg3#
- 1...Sxd2
- 2.Rd4#
- 2.Re5#
- 1...Sd4
- 2.Rxd4#
- 2.Re5#
- 2.Qxd4#
- 1...Bxd2!
- 1...Kxe4
- 1.Ke3?
- Keys
- 1.Rxc4!
- threat
- 2.Se3#
- 1...Kxc4
- 2.Qb3#
- 1...Sxc5
- 2.R8xc5#
- 1...bxc4
- 2.Qxf3#
- 1...exf5
- 2.Bg8#
- 1...Sd4
- 2.Rxd4#
- 1...e5
- 2.Bg8#
- threat
- 1.Rxc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 1
- Sets
- K(f);N_SPINP(b),OGATEB,S_FLIGHT,XR(D)::QAB1(A),XS(c)
- Tries
- Try
- K(C);S_FLIGHT
- Threat
- S(I)
- Vars
- P(h);OGATEB::B(K)
- Refutation
- P(i);XP(H)
- Try
- K(C);P-FLIGHT,XS(c)
- Threat
- DUALS(4)
- Refutation
- P(g);CHECK,XP(E)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- S(j);XP(F)::S(I)
- P(g);XP(E)::S(I)
- P(i);XP(H)::QAB(A),XS(c)
- P(d);OGATEB::QAB(A)
- P(h);OGATEB::B(K)
- S(j);::S(I)
- Refutation
- P(h);XS(G)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- P(g);XP(E)::S(G)
- P(h);OGATEB,XS(G)::B(K)
- P(h);OGATEB::B(K)
- S(j);::S(G)
- Refutation
- S(j);XP(F)
- Try
- R(D);XP(h)
- Threat
- S(I)
- Vars
- K(f);N_SPINP(b),OGATEB,S_FLIGHT,XR(D)::B(K)
- P(k);SBLOCK,XR(D)::QAB(A),XS(c)
- S(c);N_GUARD::R1(D),XS(c)
- P(d);OGATEB::QAB(A)
- Refutation
- P(i);XP(H)
- Try
- Q(A);N_PINP(b),XS(c)
- Threat
- DUALS(8)
- Refutation
- P(b);CHECK
- Try
- Q(A);CHECK,XP(b)
- Vars
- K(f);S_FLIGHT,XR(D)::S(G)
- Refutation
- B(a);XQ(A)
- Try
- Actual
- R(D);XP(d)
- Threat
- S(G)
- Vars
- K(f);N_SPINP(b),OGATEB,S_FLIGHT,XR(D)::QAB1(A)
- S(j);OGATE,XP(F)::R1(L),XS(j)
- P(e);SBLOCK,XR(D)::QAB(A),XS(c)
- P(h);OGATEB,XS(G)::B(K)
- S(c);N_GUARD,N_SPINP(b)::R1(D),XS(c)
- P(h);OGATEB::B(K)
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).