MESON Chess Problem Database
Problem Display
PID: 242874 (7K/2Pn2R1/2Q1pPN1/3N1k1P/1R3b1P/2r4p/4B2q/B2n4 w - - 0 1)
Degener, Udo
Schach, 1988
#2
12 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Rxf4#
- 1...Qh1
- 2.Rxf4#
- 1...Qxe2
- 2.Rxf4#
- 1...Qg2
- 2.Rxf4#
- 1...Rc1
- 2.Sde7#
- 2.Sge7#
- 1...Rc2
- 2.Sde7#
- 2.Sge7#
- 2.Qxc2#
- 1...Ra3
- 2.Sde7#
- 2.Sge7#
- 1...Rb3
- 2.Sde7#
- 2.Sge7#
- 1...Rd3
- 2.Sde7#
- 2.Sge7#
- 1...Re3
- 2.Sde7#
- 2.Sge7#
- 1...Rf3
- 2.Sge7#
- 1...Rg3
- 2.Sde7#
- 2.Sge7#
- 2.Rxf4#
- 1...Rc4
- 2.Sde7#
- 1...Rc5
- 2.Sde7#
- 2.Sge7#
- 1...Rxc6
- 2.Sde7#
- 2.Sge7#
- 1...Bc1
- 2.Bg4#
- 1...Bd2
- 2.Bg4#
- 1...Be3
- 2.Bg4#
- 1...Bg3
- 2.Bg4#
- 1...Be5
- 2.Sge7#
- 2.Bg4#
- 1...Bg5
- 2.Bg4#
- 1...Bd6
- 2.Bg4#
- 1...Bh6
- 2.Bg4#
- 1...Bxc7
- 2.Bg4#
- 1...Se5
- 2.Sge7#
- 1...Sxf6
- 2.Sde7#
- 1...e5
- 2.Sde7#
- 2.Sge7#
- 2.Qxd7#
- 1...Qg1
- Tries
- 1.Sgxf4?
- threat
- 2.Rg5#
- 2.Qxe6#
- 1...Ke5
- 2.Rg5#
- 2.Qxe6#
- 1...Qxe2
- 2.Rg5#
- 1...Rxc6
- 2.Se7#
- 2.Bd3#
- 2.Bg4#
- 2.Rg5#
- 1...exd5
- 2.Rg5#
- 2.Qe6#
- 1...Qg1
- 2.Qxe6#
- 1...Qg3
- 2.Qxe6#
- 1...Qg2
- 2.Qxe6#
- 1...Re3
- 2.Se7#
- 2.Bg4#
- 2.Rg5#
- 1...Rg3
- 2.Se7#
- 2.Qxe6#
- 1...Rc4
- 2.Qxe6#
- 1...Sc5
- 2.Rg5#
- 1...Sf8
- 2.Rg5#
- 1...e5
- 2.Se7#
- 2.Bg4#
- 2.Rg5#
- 2.Qxd7#
- 2.Qe6#
- 1...Qxf4!
- threat
- 1.Bxc3?
- threat
- 2.Sde7#
- 2.Sge7#
- 1...Qxe2
- 2.Sge7#
- 2.Rxf4#
- 1...exd5
- 2.Se7#
- 2.Qxd7#
- 1...Be5
- 2.Sge7#
- 2.Bd3#
- 2.Bg4#
- 1...Bd6
- 2.Bd3#
- 2.Bg4#
- 1...Se5
- 2.Sge7#
- 1...Sxc3!
- threat
- 1.Bd3+?
- 1...Rxd3
- 2.Sge7#
- 1...Kg4!
- 1...Rxd3
- 1.Rf7?
- threat
- 2.Sde7#
- 1...Qxe2
- 2.Rxf4#
- 1...exd5
- 2.Qxd7#
- 1...Bd6
- 2.Bg4#
- 1...Rf3!
- threat
- 1.Qd6?
- threat
- 2.Sge7#
- 1...Bxd6
- 2.Bg4#
- 1...Rc4!
- threat
- 1.Sgxf4?
- Keys
- 1.c8S!
- threat
- 2.Sc8e7#
- 1...Qxe2
- 2.Rxf4#
- 1...Rf3
- 2.Sg6e7#
- 1...Rc4
- 2.Sd5e7#
- 1...Bd6
- 2.Bg4#
- threat
- 1.c8S!
There are these versions: 242873
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 12
- Sets
- Q(b);N_GUARD::R1(C),XB(e)
- Q(b);N_GUARD,XB(B)::R1(C),XB(e)
- R(c);::S(I)
- R(c);::S(E)
- B(e);::B(B)
- B(e);XP(J)::B(B)
- S(h);SBLOCK::S(I)
- S(h);SBLOCK,XP(H)::S(E)
- Tries
- Try
- S(I);XB(e)
- Threat
- DUALS(2)
- Vars
- Q(b);XB(B)::R1(K)
- Q(b);::QAB1(G),XP(g)
- R(c);::QAB1(G),XP(g)
- S(h);::R1(K)
- Refutation
- Q(b);XS(I)
- Try
- B(A);XR(c)
- Threat
- DUALS(2)
- Vars
- S(h);::S(I)
- Refutation
- S(a);XB(A)
- Try
- B(B);CHECK
- Vars
- R(c);XB(B)::S(I)
- Refutation
- K(f);P_SPINB(e),S_FLIGHT
- Try
- R(K);
- Threat
- S(E)
- Vars
- Q(b);N_GUARD,XB(B)::R1(C),XB(e)
- P(g);OGATEB,XS(E)::QAB(G),XS(h)
- B(e);::B(B)
- Refutation
- R(c);
- Try
- Q(G);
- Threat
- S(I)
- Vars
- B(e);XQ(G)::B(B)
- Refutation
- R(c);
- Try
- Actual
- P(J);
- Threat
- S(J)
- Vars
- Q(b);N_GUARD,XB(B)::R1(C),XB(e)
- R(c);::S(I)
- R(c);::S(E)
- B(e);::B(B)
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).