MESON Chess Problem Database
Problem Display
PID: 242877 (KbN1R3/p5Pr/5pPp/4Pk2/p3pNR1/r2p3P/4ppB1/1b2Qn2 w - - 0 1)
Degener, Udo
Thema Danicum, 1989
#2
11 + 14
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bxe5
- 2.Se7#
- 1...Bd6
- 2.Sxd6#
- 1...fxe5
- 2.Rf8#
- 1...Bxe5
- Tries
- 1.Kxb8?
- threat
- 2.Sd6#
- 1...fxe5
- 2.Rf8#
- 1...Rb3+!
- threat
- 1.Sxe2?
- threat
- 2.Sd4#
- 2.Bxe4#
- 2.Qxf2#
- 1...Bxe5
- 2.Bxe4#
- 1...fxe1Q
- 2.Sd4#
- 2.Bxe4#
- 1...fxe1S
- 2.Sd4#
- 2.Bxe4#
- 1...fxe1B
- 2.Sd4#
- 2.Bxe4#
- 1...fxe1R
- 2.Sd4#
- 2.Bxe4#
- 1...fxe5
- 2.Qxf2#
- 1...Sd2
- 2.Sg3#
- 2.Sd4#
- 1...Sh2
- 2.Sg3#
- 2.Sd4#
- 2.Bxe4#
- 1...Sg3
- 2.Sxg3#
- 2.Sd4#
- 2.Qxf2#
- 1...d2
- 2.Sd4#
- 1...e3
- 2.Sd4#
- 2.Be4#
- 1...dxe2!
- threat
- 1.Sxd3?
- threat
- 2.Bxe4#
- 2.Qxf2#
- 1...Rxd3
- 2.Bxe4#
- 1...Bxd3
- 2.Qxf2#
- 1...Bxe5
- 2.Bxe4#
- 1...fxe1Q
- 2.Bxe4#
- 1...fxe1S
- 2.Bxe4#
- 1...fxe1B
- 2.Bxe4#
- 1...fxe1R
- 2.Bxe4#
- 1...exd3
- 2.Be4#
- 2.Qxf2#
- 1...fxe5
- 2.Qxf2#
- 1...Sh2
- 2.Bxe4#
- 1...Sg3
- 2.Qxf2#
- 1...e3
- 2.Be4#
- 1...Sd2!
- threat
- 1.Sd5?
- threat
- 2.Bxe4#
- 2.Qxf2#
- 1...Bxe5
- 2.Bxe4#
- 1...fxe1Q
- 2.Bxe4#
- 1...fxe1S
- 2.Bxe4#
- 1...fxe1B
- 2.Bxe4#
- 1...fxe1R
- 2.Bxe4#
- 1...Sd2
- 2.Se3#
- 1...Sh2
- 2.Se3#
- 2.Bxe4#
- 1...Sg3
- 2.Se3#
- 2.Qxf2#
- 1...e3
- 2.Be4#
- 1...d2!
- threat
- 1.Sh5?
- threat
- 2.Bxe4#
- 2.Qxf2#
- 1...Bxe5
- 2.Bxe4#
- 1...fxe1Q
- 2.Bxe4#
- 1...fxe1S
- 2.Bxe4#
- 1...fxe1B
- 2.Bxe4#
- 1...fxe1R
- 2.Bxe4#
- 1...Sd2
- 2.Sg3#
- 1...Sh2
- 2.Sg3#
- 2.Bxe4#
- 1...Sg3
- 2.Sxg3#
- 2.Qxf2#
- 1...e3
- 2.Be4#
- 1...d2!
- threat
- 1.Re6?
- threat
- 2.Se7#
- 1...Bd6
- 2.Sxd6#
- 1...Rxg7!
- threat
- 1.Qa5?
- threat
- 2.Se7#
- 1...fxe5
- 2.Rf8#
- 1...Bd6
- 2.Sxd6#
- 2.exd6#
- 1...Rxg7!
- threat
- 1.Kxb8?
- Keys
- 1.Se6!
- threat
- 2.Sd4#
- 1...Kxe5
- 2.Qa5#
- 1...Bxe5
- 2.Bxe4#
- 1...fxe5
- 2.Qxf2#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(n);SBLOCK,XP(F)::S(J)
- B(n);N_GUARD::S(J),XB(n)
- P(j);OGATEB,SBLOCK,XP(F)::R(K)
- Tries
- Try
- K(I);P-FLIGHT,XB(n)
- Threat
- S(J)
- Vars
- P(j);OGATEB,SBLOCK,XP(F)::R(K)
- Refutation
- R(e);CHECK
- Try
- S(D);XP(c)
- Threat
- DUALS(3)
- Vars
- B(n);XP(F)::B(B),XP(h)
- P(j);XP(F)::QAR(A),XP(d)
- P(f);::S(D)
- Refutation
- P(f);XS(D)
- Try
- S(D);XP(f)
- Threat
- DUALS(2)
- Vars
- R(e);XS(D)::B(B),XP(h)
- B(a);XS(D)::QAR(A),XP(d)
- B(n);XP(F)::B(B),XP(h)
- P(d);XQ(A)::B(B),XP(h)
- P(j);XP(F)::QAR(A),XP(d)
- S(b);::B(B),XP(h)
- S(b);::QAR(A),XP(d)
- P(h);::B(B)
- Refutation
- S(b);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(n);XP(F)::B(B),XP(h)
- P(d);XQ(A)::B(B),XP(h)
- S(b);N_GUARD::S(D)
- P(h);::B(B)
- Refutation
- P(f);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(n);XP(F)::B(B),XP(h)
- P(d);XQ(A)::B(B),XP(h)
- S(b);N_GUARD::S(D)
- P(h);::B(B)
- Refutation
- P(f);
- Try
- R(K);
- Threat
- S(J)
- Vars
- B(n);N_GUARD::S(J),XB(n)
- Refutation
- R(m);XP(H)
- Try
- Q(A);
- Threat
- S(J)
- Vars
- P(j);OGATEB,P_SPINP(j),XP(F)::R(K)
- Refutation
- R(m);XP(H)
- Try
- Actual
- S(D);
- Threat
- S(D)
- Vars
- K(i);OGATEB,P-FLIGHT,XP(F)::QAR(A)
- B(n);SBLOCK,XP(F)::B(B),XP(h)
- P(j);SBLOCK,XP(F)::QAR(A),XP(d)
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).