MESON Chess Problem Database
Problem Display
PID: 51965 (B7/2P5/ppKP4/4P1Q1/n1NBkrbR/r7/2P1P1n1/b2R3N w - - 0 1)
Maleika, Gerhard
Die Schwalbe, 2004
#2
13 + 9
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Sg3#
- 1...Rg3
- 2.Sxg3#
- 1...Rf2
- 2.Sxf2#
- 1...Rf5
- 2.Kd7#
- 1...Bc3
- 2.Sg3#
- 1...Bxe2
- 2.Kd7#
- 1...Bf3
- 2.Kd7#
- 2.Sf2#
- 2.Sg3#
- 2.Qg6#
- 1...Bh3
- 2.Sf2#
- 1...Bf5
- 2.Sf2#
- 1...Bh5
- 2.Kd7#
- 2.Sf2#
- 1...Be6
- 2.Sf2#
- 1...Bd7+
- 2.Kxd7#
- 1...Bc8
- 2.Sf2#
- 1...Se3
- 2.Sg3#
- 1...Sb2
- 2.Kxb6#
- 1...Sc3
- 2.Sg3#
- 1...a5
- 2.Kb5#
- 1...Ra2
- Tries
- 1.Bxa1?
- threat
- 2.Rd4#
- 1...Bd7+
- 2.Kxd7#
- 1...Rxa1
- 2.Sg3#
- 1...Bxe2
- 2.Kd7#
- 1...Rd3
- 2.cxd3#
- 1...Sb2
- 2.Kxb6#
- 1...Sc3
- 2.Sg3#
- 1...Rc3!
- threat
- 1.Bg1?
- threat
- 2.Sd2#
- 1...Bd7+
- 2.Kxd7#
- 1...Rc3
- 2.Rd4#
- 1...Rd3
- 2.cxd3#
- 1...Rf2
- 2.Sxf2#
- 1...Rf5
- 2.Kd7#
- 1...Bc3
- 2.Sg3#
- 1...Bf5
- 2.Sf2#
- 1...Se3
- 2.Sg3#
- 1...Re3!
- threat
- 1.Bc3?
- threat
- 2.Sg3#
- 2.Rd4#
- 1...Bd7+
- 2.Kxd7#
- 1...Bxc3
- 2.Sg3#
- 1...Bxe2
- 2.Kd7#
- 1...Sxc3
- 2.Sg3#
- 1...Rf3
- 2.Sd2#
- 2.Rd4#
- 1...Rxc3!
- threat
- 1.Be3?
- threat
- 2.Sg3#
- 1...Bd7+
- 2.Kxd7#
- 1...Bxe2
- 2.Kd7#
- 1...Rf3
- 2.Sd2#
- 1...Rxe3!
- threat
- 1.Rd3?
- threat
- 2.Sg3#
- 2.Sd2#
- 1...Bd7+
- 2.Kxd7#
- 1...Rc3
- 2.Sg3#
- 1...Rf3
- 2.Sd2#
- 2.exf3#
- 1...Bc3
- 2.Sg3#
- 1...Rxd3!
- threat
- 1.Rxg4?
- threat
- 2.Kd7#
- 2.Sf2#
- 2.Qg6#
- 1...Rxg4
- 2.Kd7#
- 2.Sf2#
- 1...Bxd4
- 2.Kd7#
- 2.Qg6#
- 1...Rf3
- 2.Kd7#
- 2.Qg6#
- 1...Se3
- 2.Sf2#
- 2.Sg3#
- 2.Rxf4#
- 2.Qxf4#
- 1...Sh4
- 2.Kd7#
- 2.Sf2#
- 2.Rxf4#
- 2.Qxf4#
- 1...Sc3
- 2.Sf2#
- 2.Sg3#
- 2.Qg6#
- 1...Sc5
- 2.Sf2#
- 2.Qg6#
- 1...Rd3!
- threat
- 1.Qg6+?
- 1...Bf5
- 2.Sf2#
- 1...Rf5!
- 1...Bf5
- 1.c3?
- threat
- 2.Sg3#
- 2.Sd2#
- 1...Bd7+
- 2.Kxd7#
- 1...Bxc3
- 2.Sg3#
- 1...Bxe2
- 2.Kd7#
- 1...Sxc3
- 2.Sg3#
- 1...Ra2
- 2.Sg3#
- 1...Rf3
- 2.Sd2#
- 1...Rxc3!
- threat
- 1.e6?
- threat
- 2.Kd7#
- 2.Qd5#
- 2.Qe5#
- 1...Bxd4
- 2.Kd7#
- 2.Qd5#
- 1...Bxe2
- 2.Kd7#
- 2.Qd5#
- 1...Bxe6
- 2.Sf2#
- 2.Qe5#
- 1...Rd3
- 2.Qd5#
- 2.Qe5#
- 1...Rf1
- 2.Kd7#
- 2.Qe5#
- 1...Rf2
- 2.Kd7#
- 2.Sxf2#
- 2.Qe5#
- 1...Rff3
- 2.Kd7#
- 2.Qe5#
- 1...Rf6
- 2.Kd7#
- 2.Qe5#
- 1...Rf7
- 2.Qe5#
- 1...Rf8
- 2.Qe5#
- 1...Bf5
- 2.Kd7#
- 2.Sf2#
- 1...Se3
- 2.Sg3#
- 2.Qe5#
- 1...Sc3
- 2.Sg3#
- 2.Qe5#
- 1...Sc5
- 2.Qd5#
- 2.Qe5#
- 1...Rf5!
- threat
- 1.Bxa1?
- Keys
- 1.Bxb6!
- threat
- 2.Sd2#
- 1...Bd7+
- 2.Kxd7#
- 1...Sxb6
- 2.Kxb6#
- 1...Rc3
- 2.Rd4#
- 1...Rd3
- 2.cxd3#
- 1...Rf5
- 2.Kd7#
- 1...Bc3
- 2.Sg3#
- 1...Bd4
- 2.Rxd4#
- 1...Bf5
- 2.Sf2#
- 1...Sc5
- 2.Kxc5#
- threat
- 1.Bxb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 11
- Sets
- R(c);N_GUARD::S(B)
- R(c);N_GUARD::S(B),XR(c)
- R(f);N_GUARD,P_SPINB(g)::S(B),XR(f)
- R(f);P_SPINB(g)::B(M)+K(J)
- B(a);S_CUTR(c)::S(B)
- B(g);P_SPINR(f),XP(D)::B(M)+K(J)
- B(g);P_SPINR(f)::S(B)
- B(g);CHECK,P_SPINR(f)::B(M)+K(J),XB(g)
- S(b);S_CUTR(c)::S(B)
- S(d);::B(M)+K(J),XP(i)
- S(d);S_CUTR(c)::S(B)
- P(h);::B(M)+K(J)
- Tries
- Try
- B(F);XB(a)
- Threat
- R1(A)
- Vars
- B(g);CHECK,P_SPINR(f)::B(M)+K(J),XB(g)
- R(c);N_GUARD,XB(F)::S(B)
- B(g);P_SPINR(f),XP(D)::B(M)+K(J)
- R(c);OGATE::P(C),XR(c)
- S(d);::B(M)+K(J),XP(i)
- S(d);S_CUTR(c)::S(B)
- Refutation
- R(c);P_PINS(E)
- Try
- B(F);
- Threat
- S(E)
- Vars
- B(g);CHECK,P_SPINR(f)::B(M)+K(J),XB(g)
- R(c);P_PINS(E),S_CUTB(a)::R1(A)
- R(c);OGATE::P(C),XR(c)
- R(f);N_GUARD,P_SPINB(g)::S(B),XR(f)
- R(f);P_SPINB(g)::B(M)+K(J)
- B(a);S_CUTR(c)::S(B)
- B(g);P_SPINR(f)::S(B)
- S(b);S_CUTR(c)::S(B)
- Refutation
- R(c);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- B(g);CHECK,P_SPINR(f)::B(M)+K(J),XB(g)
- B(a);XB(F)::S(B)
- B(g);P_SPINR(f),XP(D)::B(M)+K(J)
- S(d);XB(F)::S(B)
- Refutation
- R(c);P_PINS(E),XB(F)
- Try
- B(F);
- Threat
- S(B)
- Vars
- B(g);CHECK,P_SPINR(f)::B(M)+K(J),XB(g)
- B(g);P_SPINR(f),XP(D)::B(M)+K(J)
- R(f);P_SPINB(g)::S(E)
- Refutation
- R(c);XB(F)
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- B(g);CHECK,P_SPINR(f)::B(M)+K(J),XB(g)
- R(c);P_PINS(E)::S(B)
- B(a);::S(B)
- Refutation
- R(c);XR(A)
- Try
- R(G);P_PINR(f),XB(g)
- Threat
- DUALS(3)
- Refutation
- R(c);
- Try
- Q(I);CHECK
- Vars
- B(g);P_SPINB(g),P_SPINR(f)::S(B)
- Refutation
- R(f);P_SPINB(g),P_SPINR(f)
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- B(g);CHECK,P_SPINR(f)::B(M)+K(J),XB(g)
- B(a);XP(C)::S(B)
- B(g);P_SPINR(f),XP(D)::B(M)+K(J)
- S(d);XP(C)::S(B)
- R(c);::S(B)
- R(f);P_SPINB(g)::S(E)
- Refutation
- R(c);P_PINS(E),XP(C)
- Try
- P(H);
- Threat
- DUALS(3)
- Vars
- R(f);P_SPINB(g)::QAR1(I)
- Refutation
- R(f);P_SPINB(g)
- Try
- Actual
- B(F);XP(i)
- Threat
- S(E)
- Vars
- B(g);CHECK,P_SPINR(f)::B(M)+K(J),XB(g)
- S(d);XB(F)::B(M)+K(J),XS(d)
- R(c);P_PINS(E),S_CUTB(a)::R1(A)
- R(c);OGATE::P(C),XR(c)
- R(f);P_SPINB(g)::B(M)+K(J)
- B(a);S_CUTR(c)::S(B)
- B(a);N_GUARD::R1(A),XB(a)
- B(g);P_SPINR(f)::S(B)
- S(d);::B(M)+K(J),XS(d)
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).