MESON Chess Problem Database
Problem Display
PID: 37469 (2Q5/2p4p/1pk3qR/1p6/1B1pNN2/8/2P1K1P1/2R2B2 w - - 0 1)
Kummer, Konrad
Die Linth, 1975
#2
10 + 7
| 3690 | Kunstschach in der Schweiz | 1980 |
SOLUTION
- SOUND
- Sets
- 1...Qd6
- 2.Rxd6#
- 1...Qe6
- 2.Rxe6#
- 1...Qf6
- 2.Rxf6#
- 1...d3+
- 2.cxd3#
- 1...Qd6
- Tries
- 1.Kd1?
- 1...Qd6
- 2.Rxd6#
- 1...Qe6
- 2.Rxe6#
- 1...Qf6
- 2.Rxf6#
- 1...d3
- 2.cxd3#
- 1...Qxh6!
- 1...Qd6
- 1.Ke1?
- 1...Qd6
- 2.Rxd6#
- 1...Qe6
- 2.Rxe6#
- 1...Qf6
- 2.Rxf6#
- 1...d3
- 2.cxd3#
- 1...Qxh6!
- 1...Qd6
- 1.Kd2?
- 1...Qd6
- 2.Rxd6#
- 1...Qe6
- 2.Rxe6#
- 1...Qf6
- 2.Rxf6#
- 1...d3
- 2.cxd3#
- 1...Qxh6!
- 1...Qd6
- 1.Kf2?
- 1...Qd6
- 2.Rxd6#
- 1...Qe6
- 2.Rxe6#
- 1...Qf6
- 2.Rxf6#
- 1...d3
- 2.cxd3#
- 1...Qxh6!
- 1...Qd6
- 1.Kd3?
- 1...Qd6
- 2.Rxd6#
- 1...Qe6
- 2.Rxe6#
- 1...Qf6
- 2.Rxf6#
- 1...Qxh6!
- 1...Qd6
- 1.Kf3?
- 1...Qd6
- 2.Rxd6#
- 1...Qe6
- 2.Rxe6#
- 1...Qf6
- 2.Rxf6#
- 1...d3
- 2.cxd3#
- 1...Qxh6!
- 1...Qd6
- 1.Sd2?
- 1...Qe6+
- 2.Rxe6#
- 1...d3+
- 2.cxd3#
- 1...Qd6
- 2.Rxd6#
- 1...Qf6
- 2.Rxf6#
- 1...Qxh6!
- 1...Qe6+
- 1.Sf2?
- 1...Qe6+
- 2.Rxe6#
- 1...d3+
- 2.cxd3#
- 1...Qd6
- 2.Rxd6#
- 1...Qf6
- 2.Rxf6#
- 1...Qxh6!
- 1...Qe6+
- 1.Sg3?
- 1...Qe6+
- 2.Rxe6#
- 1...d3+
- 2.cxd3#
- 1...Qd6
- 2.Rxd6#
- 1...Qf6
- 2.Rxf6#
- 1...Qxh6!
- 1...Qe6+
- 1.Sg5?
- 1...Qe6+
- 2.Rxe6#
- 1...d3+
- 2.cxd3#
- 1...Qd6
- 2.Rxd6#
- 1...Qf6
- 2.Rxf6#
- 1...Qxh6!
- 1...Qe6+
- 1.c3?
- threat
- 2.cxd4#
- 1...dxc3
- 2.Rxc3#
- 1...d3+!
- threat
- 1.g3?
- 1...d3+
- 2.cxd3#
- 1...Qd6
- 2.Rxd6#
- 1...Qe6
- 2.Rxe6#
- 1...Qf6
- 2.Rxf6#
- 1...Qxh6!
- 1...d3+
- 1.g4?
- 1...d3+
- 2.cxd3#
- 1...Qd6
- 2.Rxd6#
- 1...Qe6
- 2.Rxe6#
- 1...Qf6
- 2.Rxf6#
- 1...Qxh6!
- 1...d3+
- 1.Kd1?
- Keys
- 1.Sf6!
- threat
- 2.Qa8#
- 1...Qxc2+
- 2.Rxc2#
- 1...Qd3+
- 2.cxd3#
- 1...Qe4+
- 2.Sxe4#
- 1...Qh5+
- 2.S6xh5#
- 1...Qe8+
- 2.Sxe8#
- 1...Qxg2+
- 2.Bxg2#
- 1...Qg4+
- 2.Sxg4#
- 1...d3+
- 2.cxd3#
- 1...Qxf6
- 2.Rxf6#
- 1...Qg8
- 2.Sxg8#
- threat
- 1.Sf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 2
- Sets
- Q(e);OGATE::R1(I),XQ(e)
- Q(e);OGATE,P_PINS(G)::R(I),XQ(e)
- Q(e);OGATE::R(I),XQ(e)
- P(a);CHECK,OGATE::R(A)+P(C),XP(a)
- Tries
- Try
- K(D);S_FLIGHT
- Vars
- Q(e);OGATE::R1(I),XQ(e)
- Q(e);OGATE::R(I),XQ(e)
- P(a);OGATE::R(A)+P(C),XP(a)
- Refutation
- Q(e);N_SPINQ(e),XR(I)
- Try
- K(D);P-FLIGHT
- Vars
- Q(e);OGATE::R1(I),XQ(e)
- Q(e);OGATE,P_PINS(G)::R(I),XQ(e)
- Q(e);OGATE::R(I),XQ(e)
- P(a);OGATE::R(A)+P(C),XP(a)
- Refutation
- Q(e);N_SPINQ(e),XR(I)
- Try
- K(D);P-FLIGHT
- Vars
- Q(e);OGATE::R1(I),XQ(e)
- Q(e);OGATE::R(I),XQ(e)
- P(a);OGATE::R(A)+P(C),XP(a)
- Refutation
- Q(e);N_SPINQ(e),P_PINS(H),XR(I)
- Try
- K(D);P-FLIGHT
- Vars
- Q(e);OGATE::R1(I),XQ(e)
- Q(e);OGATE::R(I),XQ(e)
- Q(e);OGATE,P_PINS(H)::R(I),XQ(e)
- P(a);OGATE::R(A)+P(C),XP(a)
- Refutation
- Q(e);N_SPINQ(e),XR(I)
- Try
- K(D);P_SPINS(G),S_FLIGHT
- Vars
- Q(e);N_PINS(G),OGATE::R1(I),XQ(e)
- Q(e);N_PINS(G),OGATE::R(I),XQ(e)
- Refutation
- Q(e);N_PINS(G),N_SPINQ(e),XR(I)
- Try
- K(D);S_FLIGHT
- Vars
- Q(e);OGATE::R1(I),XQ(e)
- Q(e);OGATE::R(I),XQ(e)
- Q(e);OGATE,P_PINS(H)::R(I),XQ(e)
- P(a);OGATE::R(A)+P(C),XP(a)
- Refutation
- Q(e);N_SPINQ(e),XR(I)
- Try
- S(G);
- Vars
- Q(e);CHECK,OGATE::R(I),XQ(e)
- P(a);CHECK,OGATE::R(A)+P(C),XP(a)
- Q(e);OGATE::R1(I),XQ(e)
- Q(e);OGATE::R(I),XQ(e)
- Refutation
- Q(e);N_SPINQ(e),XR(I)
- Try
- S(G);
- Vars
- Q(e);CHECK,OGATE::R(I),XQ(e)
- P(a);CHECK,OGATE::R(A)+P(C),XP(a)
- Q(e);OGATE::R1(I),XQ(e)
- Q(e);OGATE::R(I),XQ(e)
- Refutation
- Q(e);N_SPINQ(e),XR(I)
- Try
- S(G);
- Vars
- Q(e);CHECK,OGATE::R(I),XQ(e)
- P(a);CHECK,OGATE::R(A)+P(C),XP(a)
- Q(e);OGATE::R1(I),XQ(e)
- Q(e);OGATE::R(I),XQ(e)
- Refutation
- Q(e);N_SPINQ(e),XR(I)
- Try
- S(G);
- Vars
- Q(e);CHECK,OGATE::R(I),XQ(e)
- P(a);CHECK,OGATE::R(A)+P(C),XP(a)
- Q(e);OGATE::R1(I),XQ(e)
- Q(e);OGATE::R(I),XQ(e)
- Refutation
- Q(e);N_SPINQ(e),XR(I)
- Try
- P(C);
- Threat
- R(A)+P(C),XP(a)
- Vars
- P(a);N_SPINP(f),OGATE,P_SPINP(a),XP(C)::R(A),XP(a)
- Refutation
- P(a);CHECK
- Try
- P(E);
- Vars
- P(a);CHECK,OGATE::R(A)+P(C),XP(a)
- Q(e);OGATE::R1(I),XQ(e)
- Q(e);OGATE,P_PINS(G)::R(I),XQ(e)
- Q(e);OGATE::R(I),XQ(e)
- Refutation
- Q(e);N_SPINQ(e),XR(I)
- Try
- P(E);
- Vars
- P(a);CHECK,OGATE::R(A)+P(C),XP(a)
- Q(e);OGATE::R1(I),XQ(e)
- Q(e);OGATE,P_PINS(G)::R(I),XQ(e)
- Q(e);OGATE::R(I),XQ(e)
- Refutation
- Q(e);N_SPINQ(e),XR(I)
- Try
- Actual
- S(G);N_PINQ(e)
- Threat
- QAB(J)
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XP(C)::R(A),XQ(e)
- Q(e);CHECK,OGATE::R(A)+P(C),XQ(e)
- Q(e);CHECK::R(I)+S(G),XQ(e)
- Q(e);CHECK,OGATE,XP(E)::B(B),XQ(e)
- P(a);CHECK,OGATE::R(A)+P(C),XP(a)
- Q(e);OGATE,P_SPINQ(e),XS(G)::R(I),XQ(e)
- Q(e);::R(I)+S(G),XQ(e)
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).