MESON Chess Problem Database
Problem Display
PID: 148400 (r3BB2/2PN4/rRq1k2p/6np/pN1bP3/2n1p2P/6Q1/5R1K w - - 0 1)
Skowronek, Ernst
Schach-Echo, 1976
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Ra5
- 2.Rxc6#
- 1...R6a7
- 2.Rxc6#
- 1...Rd8
- 2.cxd8S#
- 1...Bc5
- 2.Rf6#
- 1...Be5
- 2.Sc5#
- 1...Bxb6
- 2.Rf6#
- 1...Bf6
- 2.Rxf6#
- 1...Sb1
- 2.Qa2#
- 1...Sd1
- 2.Qa2#
- 1...Sa2
- 2.Qxa2#
- 1...Scxe4
- 2.Qa2#
- 1...Sb5
- 2.Qa2#
- 1...Sd5
- 2.exd5#
- 1...Sf3
- 2.Qg8#
- 1...Sxh3
- 2.Qxh3#
- 2.Qg8#
- 1...Sgxe4
- 2.Qg8#
- 1...Sh7
- 2.Qg8#
- 1...h4
- 2.Qg4#
- 1...Ra5
- Tries
- 1.Sxc6?
- threat
- 2.Sxd4#
- 2.Sd8#
- 1...Rxb6
- 2.Sxd4#
- 1...Bxb6
- 2.Rf6#
- 1...Scxe4
- 2.Qa2#
- 1...Sgxe4
- 2.Qg8#
- 1...Rd8
- 2.Sxd4#
- 2.Sxd8#
- 2.cxd8S#
- 1...Bc5
- 2.Sd4#
- 2.Sd8#
- 2.Sxc5#
- 2.Rf6#
- 1...Be5
- 2.Sd4#
- 2.Sd8#
- 2.Sc5#
- 1...Bf6
- 2.Sd4#
- 2.Sd8#
- 2.Sc5#
- 2.Rxf6#
- 1...Bg7
- 2.Sd4#
- 2.Sd8#
- 2.Sc5#
- 1...Bh8
- 2.Sd4#
- 2.Sd8#
- 2.Sc5#
- 1...Rxe8!
- threat
- 1.Sc5+?
- 1...Ke5
- 2.Sbd3#
- 2.Sxc6#
- 2.Rf5#
- 2.Qh2#
- 2.Qg3#
- 1...Bxc5!
- 1...Ke5
- 1.Qf3?
- threat
- 2.Qf5#
- 1...Ra5
- 2.Rxc6#
- 1...Sxf3!
- threat
- 1.Qa2+?
- 1...Sd5
- 2.Qxd5#
- 2.exd5#
- 1...Sxa2!
- 1...Sd5
- 1.Qxg5?
- threat
- 2.Qe7#
- 2.Qf5#
- 2.Qg8#
- 1...Rxe8
- 2.Qf5#
- 1...Ra5
- 2.Rxc6#
- 2.Qe7#
- 2.Qg8#
- 1...Bc5
- 2.Sxc5#
- 2.Rf6#
- 2.Qf6#
- 2.Qxh6#
- 2.Qe5#
- 2.Qf5#
- 2.Qg6#
- 2.Qg8#
- 1...Bf6
- 2.Sc5#
- 2.Rxf6#
- 2.Qxf6#
- 2.Qf5#
- 2.Qg8#
- 1...Bg7
- 2.Sc5#
- 2.Qe7#
- 2.Qf5#
- 1...Sd5
- 2.Qxd5#
- 2.Qf5#
- 2.Qg8#
- 2.exd5#
- 1...hxg5!
- threat
- 1.Sxc6?
- Keys
- 1.e5!
- threat
- 2.Rf6#
- 2.Qxc6#
- 1...Qxb6
- 2.Rf6#
- 1...Rxb6
- 2.Rf6#
- 1...Rxe8
- 2.Qxc6#
- 1...Bxe5
- 2.Sc5#
- 1...Sf3
- 2.Qg6#
- 1...Qd6
- 2.Rf6#
- 1...Bc5
- 2.Rf6#
- 1...Sce4
- 2.Qa2#
- 1...Sb5
- 2.Rf6#
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sge4
- 2.Qg8#
- 1...Sf7
- 2.Rf6#
- 1...Sh7
- 2.Qxc6#
- threat
- 1.e5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 5
- REMOVED MATES = 10
- Sets
- R(g);N_GUARD::R(G),XQ(h)
- R(k);OGATE::PXR(k)=S
- B(d);N_GUARD::R1(A)
- B(d);N_GUARD,SBLOCK::S(I)
- B(d);N_GUARD,N_SPINQ(h),XR(G)::R1(A)
- B(d);N_GUARD::R1(A),XB(d)
- S(a);N_GUARD::QAB(C)
- S(a);N_GUARD::QAB(C),XS(a)
- S(a);N_GUARD,XP(F)::QAB(C)
- S(a);OGATE::P(F),XS(a)
- S(e);OGATE::QAB(C)
- S(e);OGATE,XP(F)::QAB(C)
- P(f);N_GUARD::QAB(C)
- Tries
- Try
- S(E);XQ(h)
- Threat
- DUALS(2)
- Vars
- R(g);XR(G)::S(E),XB(d)
- B(d);N_GUARD,XR(G)::R1(A)
- S(a);N_GUARD,XP(F)::QAB(C)
- S(e);OGATE,XP(F)::QAB(C)
- Refutation
- R(k);XB(J)
- Try
- S(I);CHECK
- Refutation
- B(d);XS(I)
- Try
- Q(C);
- Threat
- QAB1(C)
- Vars
- R(g);N_GUARD::R(G),XQ(h)
- Refutation
- S(e);XQ(C)
- Try
- Q(C);CHECK,P_SPINP(F)
- Refutation
- S(a);XQ(C)
- Try
- Q(C);P_SPINP(F),XS(e)
- Threat
- DUALS(3)
- Vars
- R(k);XB(J)::QAB1(C)
- Refutation
- P(j);XQ(C)
- Try
- Actual
- P(F);P_SPINQ(C)
- Threat
- DUALS(2)
- Vars
- Q(h);N_PINQ(C),N_SPINQ(h),XR(G)::R1(A)
- R(g);N_SPINQ(h),XR(G)::R1(A)
- R(k);XB(J)::QAR2(C),XQ(h)
- B(d);N_GUARD,SBLOCK,XP(F)::S(I)
- S(e);N_PINQ(C)::QAR2(C)
- Q(h);N_PINQ(C)::R1(A)
- B(d);::R1(A)
- S(a);N_PINQ(C)::QAB(C)
- S(a);N_GUARD,N_PINQ(C)::QAB1(C),XS(a)
- S(e);N_PINQ(C)::QAB(C)
- S(e);::R1(A)
- S(e);::QAR2(C),XQ(h)
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).