MESON Chess Problem Database
Problem Display
PID: 57724 (BB4n1/7R/4kp2/5N1R/1K1P1r2/1N5Q/8/1q2r3 w - - 0 1)
Zuk, Henryk
Chess Life, 1957
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Sc5#
- 1...Qd3
- 2.Sc5#
- 1...Qe4
- 2.Sc5#
- 1...Qxf5
- 2.Sc5#
- 1...Qa1
- 2.Sc5#
- 1...Qd1
- 2.Sc5#
- 1...Qxb3+
- 2.Qxb3#
- 1...Rf1
- 2.d5#
- 1...Rf2
- 2.d5#
- 1...Rf3
- 2.d5#
- 1...Rxd4+
- 2.Sxd4#
- 1...Rxf5
- 2.d5#
- 1...Sh6
- 2.Re7#
- 1...Se7
- 2.Rxe7#
- 1...Qa2
- Tries
- 1.Se3+?
- 1...Qf5
- 2.Sc5#
- 2.Bd5#
- 1...Rg4
- 2.Bd5#
- 1...Rf5
- 2.Bd5#
- 2.d5#
- 1...f5!
- 1...Qf5
- 1.Sg3+?
- 1...Qf5
- 2.Sc5#
- 1...Rg4
- 2.Bd5#
- 1...Rf5
- 2.d5#
- 1...f5!
- 1...Qf5
- 1.Sh4+?
- 1...Qf5
- 2.Sc5#
- 1...Rg4
- 2.Bd5#
- 1...Rf5
- 2.d5#
- 1...f5!
- 1...Qf5
- 1.Sh6+?
- 1...Qf5
- 2.Sc5#
- 1...Rg4
- 2.Bd5#
- 1...Rf5
- 2.d5#
- 1...f5!
- 1...Qf5
- 1.Qg2?
- threat
- 2.Bd5#
- 2.Qd5#
- 2.Qc6#
- 2.Qxg8#
- 1...Rxd4+
- 2.Sxd4#
- 1...Qxf5
- 2.Qc6#
- 2.Qxg8#
- 1...Rxf5
- 2.Qc6#
- 2.Qxg8#
- 1...Se7
- 2.Rxe7#
- 1...Qc2
- 2.Bd5#
- 2.Qd5#
- 2.Qxg8#
- 1...Qe4
- 2.Sc5#
- 2.Qxg8#
- 1...Qc1
- 2.Bd5#
- 2.Qd5#
- 2.Qxg8#
- 1...Rc1
- 2.Bd5#
- 2.Qd5#
- 2.Qxg8#
- 1...Rg1
- 2.Bd5#
- 2.Qd5#
- 2.Qc6#
- 1...Ree4
- 2.Qxg8#
- 1...Re5
- 2.Qc6#
- 2.Qxg8#
- 1...Rf3
- 2.Qxg8#
- 2.d5#
- 1...Rfe4
- 2.Qxg8#
- 1...Rg4
- 2.Bd5#
- 2.Qd5#
- 2.Qc6#
- 1...Sh6
- 2.Bd5#
- 2.Re7#
- 2.Qd5#
- 2.Qc6#
- 1...Qxb3+!
- threat
- 1.Qc3?
- threat
- 2.Qc4#
- 2.Qc6#
- 2.Qc8#
- 1...Qxb3+
- 2.Qxb3#
- 1...Rxd4+
- 2.Sxd4#
- 1...Qxf5
- 2.Qc6#
- 2.Qc8#
- 1...Rxf5
- 2.Qc6#
- 2.Qc8#
- 1...Se7
- 2.Rxe7#
- 1...Qc2
- 2.Sc5#
- 1...Qd3
- 2.Sc5#
- 2.Qc6#
- 2.Qc8#
- 1...Qe4
- 2.Sc5#
- 2.Qc8#
- 1...Qc1
- 2.Sc5#
- 1...Re5
- 2.Qc6#
- 2.Qc8#
- 1...Rc1!
- threat
- 1.Qg3?
- threat
- 2.Qxg8#
- 1...Qxb3+
- 2.Qxb3#
- 1...Rxd4+
- 2.Sxd4#
- 1...Se7
- 2.Rxe7#
- 1...Rg4
- 2.Qd6#
- 1...Sh6
- 2.Re7#
- 1...Rg1!
- threat
- 1.Se3+?
- Keys
- 1.Ra7!
- threat
- 2.Sg7#
- 1...Qxb3+
- 2.Qxb3#
- 1...Rxd4+
- 2.Sxd4#
- 1...Qxf5
- 2.Sc5#
- 1...Rxf5
- 2.d5#
- 1...Se7
- 2.Rxe7#
- threat
- 1.Ra7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- Q(a);N_PINS(A)::S(A)
- Q(a);N_PINS(A),P_SPINQ(a),XS(E)::S(A)
- Q(a);CHECK,OGATE,XS(A)::QAB(B),XQ(a)
- R(c);N_PINP(D)::P(D)
- R(c);CHECK,XP(D)::QAB(B)+S(E),DCHECK,XR(c)
- R(c);N_PINP(D),P_SPINR(c),XS(E)::P(D)
- S(f);N_GUARD::R1(G)
- S(f);N_GUARD::R1(G),XS(f)
- Tries
- Try
- S(E);CHECK
- Vars
- R(c);P_SPINR(c)::B(H)
- Refutation
- P(e);P_SPINP(e)
- Try
- S(E);CHECK
- Vars
- Q(a);N_PINS(A),P_SPINQ(a)::S(A)
- R(c);P_SPINR(c)::B(H)
- R(c);N_PINP(D),P_SPINR(c)::P(D)
- Refutation
- P(e);P_SPINP(e)
- Try
- S(E);CHECK
- Vars
- Q(a);N_PINS(A),P_SPINQ(a)::S(A)
- R(c);P_SPINR(c)::B(H)
- R(c);N_PINP(D),P_SPINR(c)::P(D)
- Refutation
- P(e);P_SPINP(e)
- Try
- S(E);CHECK
- Vars
- Q(a);N_PINS(A),P_SPINQ(a)::S(A)
- R(c);P_SPINR(c)::B(H)
- R(c);N_PINP(D),P_SPINR(c)::P(D)
- Refutation
- P(e);P_SPINP(e)
- Try
- Q(B);
- Threat
- DUALS(4)
- Vars
- R(c);CHECK,XP(D)::S(E),XR(c)
- S(f);N_GUARD::R1(G),XS(f)
- R(b);::QAB(B),XS(f)
- R(c);::QAB(B),XS(f)
- Refutation
- Q(a);CHECK,XS(A)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- Q(a);CHECK,OGATE,XS(A)::QAB(B),XQ(a)
- R(c);CHECK,XP(D)::S(E),XR(c)
- S(f);N_GUARD::R1(G),XS(f)
- Q(a);N_PINS(A)::S(A)
- Refutation
- R(b);
- Try
- Q(B);
- Threat
- QAB(B),XS(f)
- Vars
- Q(a);CHECK,OGATE,XS(A)::QAB(B),XQ(a)
- R(c);CHECK,XP(D)::S(E),XR(c)
- S(f);N_GUARD::R1(G),XS(f)
- R(c);OGATE::QAR1(B)
- S(f);N_GUARD::R1(G)
- Refutation
- R(b);
- Try
- Actual
- R(G);
- Threat
- QAB(B)+S(E),DCHECK
- Vars
- Q(a);CHECK,OGATE,XS(A)::QAB(B),XQ(a)
- R(c);CHECK,XP(D)::QAB(B)+S(E),DCHECK,XR(c)
- Q(a);N_PINS(A),P_SPINQ(a),XS(E)::S(A)
- R(c);N_PINP(D),P_SPINR(c),XS(E)::P(D)
- S(f);N_GUARD::R1(G),XS(f)
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).