MESON Chess Problem Database
Problem Display
PID: 276043 (1b1nR1Qr/2P4q/1B1k3n/1PrBN3/2PN1Pb1/8/8/3R2K1 w - - 0 1)
Mlynka, Karol
Schweizerische Schachzeitung, 1967
#2
12 + 8
| 6490 | yacpdb | 2024 |
SOLUTION
- SOUND
- Sets
- 1...Rxb5
- 2.Sxb5#
- 1...Rxd5
- 2.Qxd5#
- 1...Rxb5
- Tries
- 1.Bf3?
- threat
- 2.Sf5#
- 1...Qf5
- 2.Sxf5#
- 1...Rd5
- 2.Qxd5#
- 1...Bf5
- 2.Sxf5#
- 1...Sf5
- 2.Sxf5#
- 1...Qd3!
- threat
- 1.Be4?
- threat
- 2.Sf5#
- 1...Qf5
- 2.Sxf5#
- 1...Rd5
- 2.Qxd5#
- 1...Bf5
- 2.Sxf5#
- 1...Sf5
- 2.Sxf5#
- 1...Bxd1!
- threat
- 1.Be6?
- threat
- 2.Sf5#
- 1...Qd3
- 2.cxd8Q#
- 2.cxd8R#
- 1...Qf5
- 2.Sxf5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rd5
- 2.c8S#
- 1...Bf5
- 2.Sxf5#
- 1...Sf5
- 2.Sxf5#
- 1...Bxd1!
- threat
- 1.Bf7?
- threat
- 2.Sf5#
- 1...Bxd1
- 2.cxd8Q#
- 2.cxd8R#
- 1...Qf5
- 2.Sxf5#
- 1...Rd5
- 2.cxb8Q#
- 2.cxb8B#
- 1...Bf5
- 2.Sxf5#
- 1...Sf5
- 2.Sxf5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Qd3!
- threat
- 1.Rxd8+?
- 1...Ke7
- 2.Qg5#
- 1...Bd7
- 2.Qe6#
- 1...Qd7!
- 1...Ke7
- 1.Qf8+?
- 1...Qe7
- 2.Qxe7#
- 1...Rxf8!
- 1...Qe7
- 1.cxb8Q+?
- 1...Rc7
- 2.c5#
- 1...Qc7!
- 1...Rc7
- 1.cxb8B+?
- 1...Rc7
- 2.c5#
- 1...Qc7!
- 1...Rc7
- 1.cxd8Q+?
- 1...Bd7
- 2.Re6#
- 2.Qe6#
- 1...Qd7!
- 1...Bd7
- 1.cxd8R+?
- 1...Bd7
- 2.Re6#
- 2.Qe6#
- 1...Qd7!
- 1...Bd7
- 1.Bf3?
- Keys
- 1.Bc6!
- threat
- 2.Sf5#
- 1...Bxd1
- 2.c8S#
- 1...Qd3
- 2.cxb8Q#
- 2.cxb8B#
- 1...Qf5
- 2.Sxf5#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rd5
- 2.Qxd5#
- 1...Bf5
- 2.Sxf5#
- 1...Sf5
- 2.Sxf5#
- 2.c8S#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(b);XP(F)::S(D),XR(b)
- R(b);OGATE,XB(G)::QAR1(L),XR(b)
- Tries
- Try
- B(G);
- Threat
- R(A)+S(D),DCHECK
- Vars
- Q(e);::R(A)+S(D),DCHECK,XQ(e)
- R(b);N_GUARD::QAR1(L),XR(b)
- B(a);::R(A)+S(D),DCHECK,XB(a)
- S(d);::R(A)+S(D),DCHECK,XS(d)
- Refutation
- Q(e);
- Try
- B(G);
- Threat
- R(A)+S(D),DCHECK
- Vars
- Q(e);::R(A)+S(D),DCHECK,XQ(e)
- R(b);N_GUARD::QAR1(L),XR(b)
- B(a);::R(A)+S(D),DCHECK,XB(a)
- S(d);::R(A)+S(D),DCHECK,XS(d)
- Refutation
- B(a);XR(A)
- Try
- B(G);
- Threat
- R(A)+S(D),DCHECK
- Vars
- Q(e);N_GUARD::PXS(g)=Q
- R(b);N_GUARD::P=S
- B(a);::R(A)+S(D),DCHECK,XB(a)
- S(d);::R(A)+S(D),DCHECK,XS(d)
- Refutation
- B(a);XR(A)
- Try
- B(G);
- Threat
- R(A)+S(D),DCHECK
- Vars
- B(a);N_GUARD,XR(A)::PXS(g)=Q
- Q(e);::R(A)+S(D),DCHECK,XQ(e)
- R(b);N_GUARD::PXB(f)=Q
- B(a);::R(A)+S(D),DCHECK,XB(a)
- Refutation
- Q(e);
- Try
- R(K);CHECK,XS(g)
- Vars
- K(c);S_CUTB(a),S_CUTQ(e),S_CUTR(h),S_FLIGHT::QAB(L)
- B(a);P_SPINB(a)::QAR1(L)
- Refutation
- Q(e);P_SPINQ(e)
- Try
- Q(L);CHECK
- Vars
- Q(e);N_GUARD,P_SPINQ(e)::QAB1(L),XQ(e)
- Refutation
- R(h);XQ(L)
- Try
- P(J);CHECK,XB(f)
- Vars
- R(b);OGATE,P_SPINR(b)::P(C)
- Refutation
- Q(e);P_SPINQ(e)
- Try
- P(J);CHECK,XB(f)
- Vars
- R(b);OGATE,P_SPINR(b)::P(C)
- Refutation
- Q(e);P_SPINQ(e)
- Try
- P(J);CHECK,XS(g)
- Refutation
- Q(e);P_SPINQ(e)
- Try
- P(J);CHECK,XS(g)
- Refutation
- Q(e);P_SPINQ(e)
- Try
- Actual
- B(G);
- Threat
- R(A)+S(D),DCHECK
- Vars
- B(a);N_GUARD,XR(A)::P=S
- Q(e);N_GUARD::PXB(f)=Q
- R(b);N_GUARD::QAR1(L),XR(b)
- B(a);::R(A)+S(D),DCHECK,XB(a)
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).