MESON Chess Problem Database
Problem Display
PID: 262934 (3K4/3PB3/2N4p/1PNk2qR/7n/5r2/3r2Q1/3RbB2 w - - 0 1)
Lipton, Michael
Probleemblad, 1963
#2
10 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Rxe5#
- 1...Qf5
- 2.Qg8#
- 1...Rd3
- 2.Qa2#
- 1...Rd4
- 2.Rxd4#
- 1...Bg3
- 2.Rxd2#
- 1...Sf5
- 2.Qxf3#
- 1...Sg6
- 2.Qxf3#
- 1...Qe5
- Tries
- 1.Kc7?
- threat
- 2.d8Q#
- 2.d8R#
- 1...Qe5+
- 2.Rxe5#
- 1...Qxh5
- 2.d8Q#
- 2.d8R#
- 1...Rxd1
- 2.d8Q#
- 2.d8R#
- 1...Sxg2
- 2.d8Q#
- 2.d8R#
- 1...Rd3
- 2.Qa2#
- 1...Qf5
- 2.Qg8#
- 2.d8Q#
- 2.d8R#
- 1...Rd4
- 2.Rxd4#
- 2.d8Q#
- 2.d8R#
- 1...Bf2
- 2.d8Q#
- 2.d8R#
- 1...Sf5
- 2.Qxf3#
- 1...Sg6
- 2.Qxf3#
- 2.d8Q#
- 2.d8R#
- 1...Bg3+!
- threat
- 1.Ke8?
- threat
- 2.d8Q#
- 2.d8R#
- 1...Rxd1
- 2.d8Q#
- 2.d8R#
- 1...Sxg2
- 2.d8Q#
- 2.d8R#
- 1...Rd3
- 2.Qa2#
- 1...Qe5
- 2.Rxe5#
- 2.d8Q#
- 2.d8R#
- 1...Qf5
- 2.Qg8#
- 2.d8Q#
- 2.d8R#
- 1...Rd4
- 2.Rxd4#
- 2.d8Q#
- 2.d8R#
- 1...Bf2
- 2.d8Q#
- 2.d8R#
- 1...Bg3
- 2.Rxd2#
- 1...Sf5
- 2.Qxf3#
- 1...Sg6
- 2.Qxf3#
- 2.d8Q#
- 2.d8R#
- 1...Qxh5+!
- threat
- 1.Rxg5+?
- 1...Sf5
- 2.Rxf5#
- 2.Qxf3#
- 1...hxg5!
- 1...Sf5
- 1.Qxd2+?
- 1...Rd3
- 2.Qa2#
- 2.Qxd3#
- 1...Bxd2!
- 1...Rd3
- 1.Qe2?
- threat
- 2.Qc4#
- 2.Qe4#
- 2.Qe6#
- 1...Rxf1
- 2.Qe4#
- 2.Qe6#
- 1...Rdd3
- 2.Qa2#
- 2.Qe4#
- 2.Qe6#
- 1...Rfd3
- 2.Qe4#
- 2.Qe6#
- 1...Qe5
- 2.Rxe5#
- 2.Qc4#
- 2.Qe4#
- 2.Qxe5#
- 1...Rc3
- 2.Qe4#
- 2.Qe6#
- 1...Re3
- 2.Qc4#
- 1...Rf4
- 2.Qe6#
- 1...Rf6
- 2.Qc4#
- 2.Qe4#
- 1...Rf8+!
- threat
- 1.Qg4?
- threat
- 2.Bc4#
- 2.Qe6#
- 2.Qc4#
- 2.Qe4#
- 1...Rxf1
- 2.Qe6#
- 2.Qe4#
- 1...Qf5
- 2.Bc4#
- 2.Qc4#
- 2.Qe4#
- 2.Qg8#
- 1...Rdd3
- 2.Qe6#
- 2.Qe4#
- 1...Rd4
- 2.Rxd4#
- 2.Qe6#
- 2.Qxd4#
- 2.Qe4#
- 1...Rc3
- 2.Qe6#
- 2.Qe4#
- 1...Rfd3
- 2.Qe6#
- 2.Qe4#
- 1...Re3
- 2.Bc4#
- 2.Qc4#
- 1...Rf4
- 2.Qe6#
- 1...Rf5
- 2.Bc4#
- 2.Qc4#
- 2.Qe4#
- 1...Rf6
- 2.Bc4#
- 2.Qc4#
- 2.Qe4#
- 1...Sf5
- 2.Bc4#
- 2.Qxf3#
- 2.Qc4#
- 2.Qe4#
- 1...Rf8+!
- threat
- 1.Qxg5+?
- 1...Rf5
- 2.Qg8#
- 1...Sf5
- 2.Qg8#
- 1...hxg5!
- 1...Rf5
- 1.Kc7?
- Keys
- 1.Kc8!
- threat
- 2.d8Q#
- 2.d8R#
- 1...Qxh5
- 2.d8Q#
- 2.d8R#
- 1...Rxd1
- 2.d8Q#
- 2.d8R#
- 1...Sxg2
- 2.d8Q#
- 2.d8R#
- 1...Rd3
- 2.Qa2#
- 1...Qe5
- 2.Rxe5#
- 2.d8Q#
- 2.d8R#
- 1...Qf5
- 2.Qg8#
- 1...Rd4
- 2.Rxd4#
- 2.d8Q#
- 2.d8R#
- 1...Bf2
- 2.d8Q#
- 2.d8R#
- 1...Bg3
- 2.Rxd2#
- 1...Sf5
- 2.Qxf3#
- 1...Sg6
- 2.Qxf3#
- 2.d8Q#
- 2.d8R#
- threat
- 1.Kc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- Q(f);N_PINB(I),OGATE::R1(F),XQ(f)
- Q(f);N_PINB(I),OGATE::QAB(C)
- R(b);OGATE::QAB(C)
- R(b);N_SPINR(b),OGATE,P_SPINR(c)::R1(A),XR(b)
- B(a);N_GUARD::R(A),XR(b)
- S(d);N_GUARD,N_SPINQ(f)::QAB(C),XR(c)
- S(d);N_GUARD::QAB(C),XR(c)
- Tries
- Try
- K(J);N_SPINB(I),S_FLIGHT
- Threat
- P=Q
- Vars
- Q(f);CHECK,OGATE::R1(F),XQ(f)
- Q(f);N_SPINQ(f),XR(F)::P=Q
- R(b);N_SPINR(b),P_SPINR(c),XR(A)::P=Q
- S(d);XQ(C)::P=Q
- R(b);OGATE::QAB(C)
- B(a);::P=Q
- S(d);N_GUARD,N_SPINQ(f)::QAB(C),XR(c)
- Refutation
- B(a);CHECK
- Try
- K(J);N_SPINB(I),P-FLIGHT
- Threat
- P=Q
- Vars
- R(b);N_SPINR(b),P_SPINR(c),XR(A)::P=Q
- S(d);XQ(C)::P=Q
- R(b);OGATE::QAB(C)
- B(a);::P=Q
- B(a);N_GUARD::R(A),XR(b)
- S(d);N_GUARD,N_SPINQ(f)::QAB(C),XR(c)
- Refutation
- Q(f);CHECK,N_SPINQ(f),XR(F)
- Try
- R(F);CHECK,N_SPINB(I),XQ(f)
- Refutation
- P(g);XR(F)
- Try
- Q(C);CHECK,XR(b)
- Refutation
- B(a);P_SPINB(a),XQ(C)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(c);::QAB1(C)
- Refutation
- R(c);CHECK
- Try
- Q(C);
- Threat
- DUALS(4)
- Vars
- R(c);::QAB1(C)
- Refutation
- R(c);CHECK
- Try
- Q(C);CHECK,N_SPINB(I),XQ(f)
- Vars
- R(c);::QAB(C)
- S(d);P_SPINS(d)::QAB(C)
- Refutation
- P(g);P_SPINP(g),XQ(C)
- Try
- Actual
- K(J);N_SPINB(I),P-FLIGHT
- Threat
- P=Q
- Vars
- Q(f);N_SPINQ(f),XR(F)::P=Q
- R(b);N_SPINR(b),P_SPINR(c),XR(A)::P=Q
- S(d);XQ(C)::P=Q
- R(b);OGATE::QAB(C)
- Q(f);OGATE,P_PINP(H)::QAB(C)
- B(a);::P=Q
- B(a);N_GUARD::R(A),XR(b)
- S(d);N_GUARD,N_SPINQ(f)::QAB(C),XR(c)
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).