MESON Chess Problem Database
Problem Display
PID: 260071 (3K4/3RP3/P1k4P/1p1n4/Np1Br3/1P2P3/6pR/5Q1B w - - 0 1)
Lipton, Michael
Die Schwalbe, 1991
#2
12 + 6
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Sf4
- 2.Qc1#
- 1...Sf6
- 2.Qc1#
- 1...Sc7
- 2.Qc1#
- 1...Sxe7
- 2.Qc1#
- 1...bxa4
- 2.Qc4#
- 1...Sf4
- Tries
- 1.Rxg2?
- 1...Rxd4
- 2.Rg6#
- 1...Rxe7
- 2.Rc2#
- 1...Sxe3
- 2.Rg6#
- 1...Sxe7
- 2.Rc2#
- 2.Qc1#
- 1...bxa4
- 2.Qc4#
- 1...Rf4
- 2.Rc2#
- 1...Rg4
- 2.Rc2#
- 1...Rh4
- 2.Rc2#
- 2.Rg6#
- 1...Re5
- 2.Rc2#
- 1...Re6
- 2.Rc2#
- 1...Sc3
- 2.Rg6#
- 1...Sf4
- 2.Rc2#
- 2.Qc1#
- 1...Sb6
- 2.Rg6#
- 1...Sf6
- 2.Rc2#
- 2.Qc1#
- 1...Sc7
- 2.Rc2#
- 2.Qc1#
- 1...Rxe3!
- 1...Rxd4
- 1.Qxg2?
- 1...Rxe3
- 2.Qxd5#
- 1...Rxd4
- 2.Qg6#
- 1...Rxe7
- 2.Qxd5#
- 2.Qc2#
- 1...Sxe3
- 2.Qg6#
- 1...Sxe7
- 2.Qc2#
- 1...Rf4
- 2.Qxd5#
- 2.Qc2#
- 1...Rg4
- 2.Qxd5#
- 2.Qc2#
- 1...Rh4
- 2.Qxd5#
- 2.Qc2#
- 2.Qg6#
- 1...Re5
- 2.Qc2#
- 1...Re6
- 2.Qxd5#
- 2.Qc2#
- 1...Sc3
- 2.Qg6#
- 1...Sf4
- 2.Qc2#
- 1...Sb6
- 2.Qg6#
- 1...Sf6
- 2.Qc2#
- 1...Sc7
- 2.Qc2#
- 1...bxa4!
- 1...Rxe3
- 1.Qf5?
- threat
- 2.Qxd5#
- 1...Rxd4
- 2.Qe6#
- 1...Sxe3
- 2.Qc5#
- 1...Sxe7
- 2.Qc5#
- 1...Sc3
- 2.Qc5#
- 1...Sf4
- 2.Qc5#
- 1...Sb6
- 2.Qc5#
- 1...Sf6
- 2.Qc5#
- 1...Sc7
- 2.Qc5#
- 1...Re5!
- threat
- 1.Qf6+?
- 1...Re6
- 2.Qxe6#
- 1...Sxf6!
- 1...Re6
- 1.Rxg2?
- Keys
- 1.Bxg2!
- 1...Rxe3
- 2.Bxd5#
- 1...Rxd4
- 2.Qf6#
- 1...Rxe7
- 2.Bxd5#
- 2.Qc1#
- 1...Sxe3
- 2.Qf6#
- 1...Sxe7
- 2.Qc1#
- 2.Qf6#
- 1...bxa4
- 2.Qc4#
- 1...Rf4
- 2.Bxd5#
- 2.Qc1#
- 1...Rg4
- 2.Bxd5#
- 2.Qc1#
- 2.Qf6#
- 1...Rh4
- 2.Bxd5#
- 2.Qc1#
- 2.Qf6#
- 1...Re5
- 2.Qc1#
- 1...Re6
- 2.Bxd5#
- 2.Qc1#
- 1...Sc3
- 2.Qf6#
- 1...Sf4
- 2.Qc1#
- 1...Sb6
- 2.Qf6#
- 1...Sf6
- 2.Qc1#
- 2.Qxf6#
- 1...Sc7
- 2.Qc1#
- 1...Rxe3
- 1.Bxg2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- S(e);N_GUARD::QAR(A)
- S(e);N_GUARD,XP(K)::QAR(A)
- P(d);N_GUARD,XS(F)::QAR2(A)
- Tries
- Try
- R(C);XP(a)
- Vars
- R(c);N_GUARD,S_CUTS(e),XB(G)::R(C)
- R(c);S_CUTS(e),XP(K)::R(C)
- S(e);N_GUARD,S_CUTR(c),XP(E)::R(C)
- P(d);N_GUARD,XS(F)::QAR2(A)
- R(c);S_CUTS(e)::R(C)
- S(e);N_GUARD,S_CUTR(c)::R(C)
- Refutation
- R(c);XP(E)
- Try
- Q(A);XP(a)
- Vars
- R(c);OGATE,P_SPINS(e),XP(E)::QAB1(A),XS(e)
- R(c);N_GUARD,P_SPINS(e),XB(G)::QAR(A)
- S(e);N_GUARD,P_SPINR(c),XP(E)::QAR(A)
- S(e);N_GUARD,P_SPINR(c),XP(K)::QAR(A)
- R(c);P_SPINS(e)::QAR(A)
- S(e);N_GUARD,P_SPINR(c)::QAR(A)
- Refutation
- P(d);XS(F)
- Try
- Q(A);
- Threat
- QAB1(A),XS(e)
- Vars
- R(c);N_GUARD,XB(G)::QAR2(A)
- S(e);OGATE,XP(E)::QAR1(A)
- S(e);OGATE,XP(K)::QAR1(A)
- S(e);OGATE::QAR1(A)
- Refutation
- R(c);
- Try
- Q(A);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::QAR2(A),XR(c)
- Refutation
- S(e);XQ(A)
- Try
- Actual
- B(B);XP(a)
- Vars
- R(c);OGATE,P_SPINS(e),XP(E)::B(B),XS(e)
- R(c);N_GUARD,P_SPINS(e),XB(G)::QAR(A)
- S(e);N_GUARD,P_SPINR(c),XP(E)::QAR(A)
- P(d);N_GUARD,XS(F)::QAR2(A)
- R(c);P_SPINS(e)::QAR(A)
- S(e);N_GUARD,P_SPINR(c)::QAR(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).