MESON Chess Problem Database
Problem Display
PID: 243485 (5kr1/5PNq/2PP2nP/2pBp2Q/1r1N1bK1/6n1/8/5R2 w - - 0 1)
Buchwald, Julius
Parallele 50, 1949
#2
10 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxh6
- 2.fxg8Q#
- 2.fxg8R#
- 1...Bc1
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Bd2
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Be3
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Bg5
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Bxh6
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Sh4
- 2.Se6#
- 1...Se7
- 2.Se6#
- 1...Sh8
- 2.Se6#
- 1...Qxh6
- Tries
- 1.Qxg6?
- threat
- 2.Sde6#
- 2.Sge6#
- 1...Qxg7
- 2.Se6#
- 1...Rxd4
- 2.Se6#
- 1...Rxg7
- 2.Se6#
- 1...Bxh6
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...cxd4
- 2.Se6#
- 1...exd4
- 2.Se6#
- 1...Bc1
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Bd2
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Be3
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Bg5
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Qxg6+!
- threat
- 1.Qf5?
- threat
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Qxh6
- 2.Sde6#
- 2.Sge6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Qxg7
- 2.Se6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Rxd4
- 2.Se6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Rxg7
- 2.Se6#
- 2.Qc8#
- 1...Sxf1
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8S#
- 2.fxg8B#
- 2.fxg8R#
- 1...cxd4
- 2.Se6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...exd4
- 2.Se6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Rb8
- 2.Sde6#
- 2.Sge6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Qh8
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Rb1
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Rb2
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Rb3
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Ra4
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Rc4
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Rb5
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Rb6
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Rb7
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Rh8
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 1...Bc1
- 2.Se6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Bd2
- 2.Se6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Be3
- 2.Se6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Sh1
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8S#
- 2.fxg8B#
- 2.fxg8R#
- 1...Se2
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8S#
- 2.fxg8B#
- 2.fxg8R#
- 1...Se4
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Sh5
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Sh4
- 2.Se6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Sh8
- 2.Se6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...c4
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...e4
- 2.Sde6#
- 2.Sge6#
- 2.Qc8#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Sxf5!
- threat
- 1.Qg5?
- threat
- 2.Qd8#
- 1...Qxh6
- 2.fxg8Q#
- 2.fxg8R#
- 1...Bxg5
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Se7
- 2.Qxe7#
- 2.dxe7#
- 1...Rb8!
- threat
- 1.Qxg6?
- Keys
- 1.c7!
- threat
- 2.c8Q#
- 2.c8R#
- 1...Qxh6
- 2.fxg8Q#
- 2.fxg8R#
- 1...Qxg7
- 2.c8Q#
- 2.c8R#
- 1...Rxd4
- 2.c8Q#
- 2.c8R#
- 1...Rxg7
- 2.c8Q#
- 2.c8R#
- 1...Bxh6
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Sxf1
- 2.c8Q#
- 2.c8R#
- 1...Sxh5
- 2.c8Q#
- 2.c8R#
- 1...cxd4
- 2.c8Q#
- 2.c8R#
- 1...exd4
- 2.c8Q#
- 2.c8R#
- 1...Rb8
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qh8
- 2.c8Q#
- 2.c8R#
- 1...Rb1
- 2.c8Q#
- 2.c8R#
- 1...Rb2
- 2.c8Q#
- 2.c8R#
- 1...Rb3
- 2.c8Q#
- 2.c8R#
- 1...Ra4
- 2.c8Q#
- 2.c8R#
- 1...Rc4
- 2.c8Q#
- 2.c8R#
- 1...Rb5
- 2.c8Q#
- 2.c8R#
- 1...Rb6
- 2.c8Q#
- 2.c8R#
- 1...Rb7
- 2.c8Q#
- 2.c8R#
- 1...Rh8
- 2.c8Q#
- 2.c8R#
- 1...Bc1
- 2.Se6#
- 2.c8Q#
- 2.c8R#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Bd2
- 2.Se6#
- 2.c8Q#
- 2.c8R#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Be3
- 2.Se6#
- 2.c8Q#
- 2.c8R#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Bg5
- 2.Se6#
- 2.fxg8Q#
- 2.fxg8R#
- 1...Sh1
- 2.c8Q#
- 2.c8R#
- 1...Se2
- 2.c8Q#
- 2.c8R#
- 1...Se4
- 2.c8Q#
- 2.c8R#
- 1...Sf5
- 2.c8Q#
- 2.c8R#
- 1...Sh4
- 2.Se6#
- 2.c8Q#
- 2.c8R#
- 1...Se7
- 2.Se6#
- 1...Sh8
- 2.Se6#
- 2.c8Q#
- 2.c8R#
- 1...c4
- 2.c8Q#
- 2.c8R#
- 1...e4
- 2.c8Q#
- 2.c8R#
- threat
- 1.c7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- Q(g);N_GUARD,XP(H)::PXR(i)=Q
- S(f);P_PINS(J)::S(B)
- Tries
- Try
- Q(E);XS(f)
- Threat
- DUALS(2)
- Vars
- Q(g);P_PINQ(E),XS(J)::S(B)
- R(b);XS(B)::S(J)
- R(i);P_PINQ(E),XS(J)::S(B)
- P(d);XS(B)::S(J)
- P(e);XS(B)::S(J)
- Refutation
- Q(g);CHECK,XQ(E)
- Try
- Q(E);
- Threat
- DUALS(5)
- Refutation
- S(a);XQ(E)
- Try
- Q(E);
- Threat
- QAR2(E)
- Vars
- Q(g);N_GUARD,XP(H)::PXR(i)=Q
- Refutation
- R(b);
- Try
- Actual
- P(F);
- Threat
- P=Q
- Vars
- Q(g);N_GUARD,XP(H)::PXR(i)=Q
- Q(g);XS(J)::P=Q
- R(b);XS(B)::P=Q
- R(i);XS(J)::P=Q
- S(a);XR(A)::P=Q
- S(a);XQ(E)::P=Q
- P(d);XS(B)::P=Q
- P(e);XS(B)::P=Q
- R(b);OGATE::PXR(b)=Q
- Q(g);::P=Q
- R(b);::P=Q
- R(i);::P=Q
- S(a);::P=Q
- S(f);P_PINS(J)::S(B)
- P(d);::P=Q
- P(e);::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).