MESON Chess Problem Database
Problem Display
PID: 151934 (q1r1R1NQ/3BPkP1/2pP3P/r3pnK1/2NP4/8/5B2/5R2 w - - 0 1)
Ferron de la Fuente, Ernesto
Die Schwalbe, 2014
#2
13 + 7
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sxe5#
- 1...Ra2
- 2.Sxe5#
- 1...Ra3
- 2.Sxe5#
- 1...Ra4
- 2.Sxe5#
- 1...Ra6
- 2.Sxe5#
- 1...Ra7
- 2.Sxe5#
- 1...Se3
- 2.Bxe3#
- 1...Sg3
- 2.Bxg3#
- 1...Sxd4
- 2.Bxd4#
- 1...Sh4
- 2.Bxh4#
- 1...Sxd6
- 2.Sxd6#
- 1...Sxh6
- 2.Sxh6#
- 1...Sxe7
- 2.Rxe7#
- 1...Sxg7
- 2.Qxg7#
- 1...c5
- 2.Sxe5#
- 1...Ra1
- Tries
- 1.Sf6?
- threat
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Sxd4
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Sxd6
- 2.Sxd6#
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Sxh6
- 2.Qf8#
- 1...Sxe7
- 2.Rxe7#
- 2.Qf8#
- 1...Sxg7
- 2.Qxg7#
- 2.Qf8#
- 2.Qg8#
- 1...exd4
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Qb7
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Qa6
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Qa7
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Qb8
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Ra1
- 2.Sxe5#
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Ra2
- 2.Sxe5#
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Ra3
- 2.Sxe5#
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Ra4
- 2.Sxe5#
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Rb5
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Rc5
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Rd5
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Ra6
- 2.Sxe5#
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Ra7
- 2.Sxe5#
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Rc7
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Rb8
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Rd8
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Se3
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Sg3
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Sh4
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...e4
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...c5
- 2.Sxe5#
- 2.Qf8#
- 2.Qg8#
- 2.g8Q#
- 2.g8B#
- 1...Rxe8!
- threat
- 1.Be6+?
- 1...Kxe8
- 2.Sf6#
- 2.d7#
- 1...Kxe6!
- 1...Kxe8
- 1.Qh7?
- threat
- 2.Qxf5#
- 2.Qg6#
- 1...Sxd4
- 2.Bxd4#
- 2.Qg6#
- 1...Sxd6
- 2.Sxd6#
- 2.Qg6#
- 1...Sxh6
- 2.Sxh6#
- 2.Qg6#
- 1...Sxe7
- 2.Rxe7#
- 1...Sxg7
- 2.Be1#
- 2.Bg1#
- 2.Be3#
- 2.Bg3#
- 2.Bh4#
- 2.Qg6#
- 2.Qxg7#
- 1...exd4
- 2.Qg6#
- 1...e4
- 2.Qg6#
- 1...Se3
- 2.Bxe3#
- 2.Qg6#
- 1...Sg3
- 2.Bxg3#
- 2.Qg6#
- 1...Sh4
- 2.Bxh4#
- 1...Rxe8!
- threat
- 1.d5?
- threat
- 2.Sxe5#
- 1...e4
- 2.Se5#
- 1...Rxd5!
- threat
- 1.Sf6?
- Keys
- 1.dxe5!
- threat
- 2.e6#
- 1...Rxe5
- 2.Sxe5#
- 1...Sxd6
- 2.Sxd6#
- 1...Sxh6
- 2.Sxh6#
- 1...Sxe7
- 2.Rxe7#
- 1...Sxg7
- 2.Qxg7#
- 1...Se3
- 2.Bxe3#
- 1...Sg3
- 2.Bxg3#
- 1...Sd4
- 2.Bxd4#
- 1...Sh4
- 2.Bxh4#
- threat
- 1.dxe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(a);N_GUARD::S(C),XP(b)
- S(c);OGATEB::R(A)+B(B),XS(c)
- S(c);OGATE,XP(D)::R(A)+B(B),XS(c)
- S(c);XP(F)::S(C),XS(c)
- S(c);XP(G)::S(L),XS(c)
- S(c);OGATE,XP(I)::R1(K),XS(c)
- S(c);OGATE,XP(J)::QAR1(M),XS(c)
- P(d);S_CUTR(a)::S(C),XP(b)
- Tries
- Try
- S(L);
- Threat
- DUALS(4)
- Vars
- S(c);XP(G)::QAR1(M)
- Refutation
- R(g);XR(K)
- Try
- B(H);CHECK
- Refutation
- K(e);S_FLIGHT,XB(H)
- Try
- Q(M);
- Threat
- DUALS(2)
- Vars
- S(c);OGATE,XP(I)::R1(K),XS(c)
- P(b);XP(D)::QAB1(M)
- P(b);::QAB1(M)
- S(c);OGATEB::R(A)+B(B),XS(c)
- Refutation
- R(g);XR(K)
- Try
- P(D);
- Threat
- S(C),XP(b)
- Vars
- P(b);::S(C)
- Refutation
- R(a);XP(D)
- Try
- Actual
- P(D);XP(b)
- Threat
- P(D)
- Vars
- R(a);XP(D)::S(C),XR(a)
- S(c);P_PINP(D),XP(F)::S(C),XS(c)
- S(c);P_PINP(D),XP(G)::S(L),XS(c)
- S(c);OGATE,P_PINP(D),XP(I)::R1(K),XS(c)
- S(c);OGATE,P_PINP(D),XP(J)::QAR1(M),XS(c)
- S(c);OGATEB,P_PINP(D)::R(A)+B(B),XS(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).