MESON Chess Problem Database
Problem Display
PID: 162726 (7B/1P2p1N1/1R3qp1/4kpR1/2pp4/6P1/Q2b4/5K1B w - - 0 1)
Kettner, Karl Werner
Welt im Bild, 1933
#2
9 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qxg5
- 2.Re6#
- 2.b8Q#
- 2.b8B#
- 1...Qxg7
- 2.Bxg7#
- 2.b8Q#
- 2.b8B#
- 1...Qe6
- 2.Sxe6#
- 2.Rxe6#
- 1...Qf7
- 2.b8Q#
- 2.b8B#
- 1...Qf8
- 2.Re6#
- 1...Bc1
- 2.Qa5#
- 1...Be1
- 2.Qe2#
- 1...Bc3
- 2.Qe2#
- 1...Be3
- 2.Qa5#
- 1...Bb4
- 2.Qe2#
- 1...Bf4
- 2.Qa5#
- 1...Ba5
- 2.Qe2#
- 2.Qxa5#
- 1...Bxg5
- 2.Qa5#
- 1...c3
- 2.Qd5#
- 2.Qa5#
- 1...e6
- 2.b8Q#
- 2.b8B#
- 1...Qxg5
- Tries
- 1.Se6?
- threat
- 2.b8Q#
- 2.b8B#
- 1...Bxg5
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...Qg7
- 2.Bxg7#
- 1...Bc1
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...Be1
- 2.Qe2#
- 2.b8Q#
- 2.b8B#
- 1...Bc3
- 2.Qe2#
- 2.b8Q#
- 2.b8B#
- 1...Be3
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...Bb4
- 2.Qe2#
- 1...Bf4
- 2.Qa5#
- 2.gxf4#
- 2.b8Q#
- 2.b8B#
- 1...Ba5
- 2.Qe2#
- 2.Qxa5#
- 2.b8Q#
- 2.b8B#
- 1...c3
- 2.Qd5#
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...d3
- 2.b8Q#
- 2.b8B#
- 1...Qxh8!
- threat
- 1.Se8?
- threat
- 2.b8Q#
- 2.b8B#
- 1...Qxh8
- 2.b8Q#
- 2.b8B#
- 1...Bxg5
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...Qg7
- 2.Bxg7#
- 2.b8Q#
- 2.b8B#
- 1...Bc1
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...Be1
- 2.Qe2#
- 2.b8Q#
- 2.b8B#
- 1...Bc3
- 2.Qe2#
- 2.b8Q#
- 2.b8B#
- 1...Be3
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...Bb4
- 2.Qe2#
- 1...Bf4
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...Ba5
- 2.Qe2#
- 2.Qxa5#
- 2.b8Q#
- 2.b8B#
- 1...c3
- 2.Rb5#
- 2.Re6#
- 2.Qd5#
- 2.Qe6#
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...e6
- 2.Bxf6#
- 2.Rb5#
- 2.b8Q#
- 2.b8B#
- 1...d3!
- threat
- 1.Se6?
- Keys
- 1.Sxf5!
- threat
- 2.b8Q#
- 2.b8B#
- 1...Qxh8
- 2.Se3#
- 1...Bxg5
- 2.Qa5#
- 1...gxf5
- 2.b8Q#
- 2.b8B#
- 1...Qg7
- 2.Se3#
- 2.Bxg7#
- 2.b8Q#
- 2.b8B#
- 1...Bc1
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...Be1
- 2.Qe2#
- 2.b8Q#
- 2.b8B#
- 1...Bc3
- 2.Qe2#
- 2.b8Q#
- 2.b8B#
- 1...Be3
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...Bb4
- 2.Qe2#
- 1...Bf4
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...Ba5
- 2.Qe2#
- 2.Qxa5#
- 2.b8Q#
- 2.b8B#
- 1...c3
- 2.Rb5#
- 2.Re6#
- 2.Qd5#
- 2.Qe6#
- 2.Qa5#
- 2.b8Q#
- 2.b8B#
- 1...d3
- 2.b8Q#
- 2.b8B#
- 1...e6
- 2.Rb5#
- 2.b8Q#
- 2.b8B#
- threat
- 1.Sxf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- Q(f);N_GUARD::P=Q
- Q(f);N_GUARD::R1(F)
- B(a);N_GUARD::QAR(C)
- B(a);OGATE::QAR(C)
- B(a);N_GUARD,N_SPINP(e),XR(E)::QAR(C)
- P(h);S_CUTQ(f)::P=Q
- Tries
- Try
- S(H);P_PINQ(f)
- Threat
- P=Q
- Vars
- Q(f);OGATEB::B(I),XQ(f)
- B(a);OGATE::QAR(C)
- P(c);::P=Q
- Refutation
- Q(f);N_SPINQ(f),XB(I)
- Try
- S(H);P_PINQ(f)
- Threat
- P=Q
- Vars
- Q(f);N_SPINQ(f),XB(I)::P=Q
- B(a);OGATE::QAR(C)
- Refutation
- P(c);
- Try
- Actual
- S(H);P_PINQ(f),P_SPINS(H),XP(e)
- Threat
- P=Q
- Vars
- Q(f);N_PINS(H),N_SPINQ(f),XB(I)::R(E)+S(H)
- B(a);N_GUARD,XR(E)::QAR(C)
- P(g);P_SPINP(g),XS(H)::P=Q
- B(a);OGATE::QAR(C)
- P(c);::P=Q
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).