MESON Chess Problem Database
Problem Display
PID: 242885 (4n1K1/Qp6/B2p1b2/3P4/2N1kpP1/5N1R/2n3P1/1bBR4 w - - 0 1)
Degener, Udo
Source?, 0000
#2
11 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Sg5#
- 1...Bb2
- 2.Sg5#
- 1...Bc3
- 2.Sg5#
- 1...Be5
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bh8
- 2.Sg5#
- 1...Sc7
- 2.Sxd6#
- 1...Sg7
- 2.Sxd6#
- 1...bxa6
- 2.Qh7#
- 1...b5
- 2.Qh7#
- 1...b6
- 2.Qh7#
- 1...Ba1
- Tries
- 1.Bxb7?
- threat
- 2.Sfd2#
- 1...Bc3
- 2.Sg5#
- 1...Se3!
- threat
- 1.Qc5?
- threat
- 2.Sfd2#
- 2.Scd2#
- 1...bxa6
- 2.Sfd2#
- 1...Se3
- 2.Scd2#
- 1...Bc3
- 2.Sg5#
- 1...Bd4
- 2.Sfd2#
- 2.Sg5#
- 1...Sd4
- 2.Sfd2#
- 1...b5
- 2.Sfd2#
- 1...dxc5!
- threat
- 1.Bxb7?
- Keys
- 1.Qxb7!
- threat
- 2.Qh7#
- 1...Se3
- 2.Scd2#
- 1...Bd4
- 2.Sfd2#
- 2.Sg5#
- 1...Be7
- 2.Qxe7#
- 1...Bg7
- 2.Sg5#
- 1...Sd4
- 2.Sfd2#
- 1...Sc7
- 2.Sxd6#
- 1...Sg7
- 2.Sxd6#
- threat
- 1.Qxb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- B(f);N_GUARD::S(D)
- B(f);N_GUARD::S(D),XB(f)
- S(h);N_GUARD::S(F),XP(e)
- P(g);OGATE,XB(I)::QAB(J)
- P(g);OGATE::QAB(J)
- Tries
- Try
- B(I);XP(g)
- Threat
- S(D)
- Vars
- B(f);N_GUARD::S(D)
- Refutation
- S(b);
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- P(g);XB(I)::S(D)
- S(b);::S(F)
- B(f);N_GUARD::S(D)
- S(b);::S(D)
- P(g);::S(D)
- Refutation
- P(e);XQ(J)
- Try
- Actual
- Q(J);XP(g)
- Threat
- QAB(J)
- Vars
- S(b);SBLOCK::S(F)
- B(f);N_GUARD::QAR(J),XB(f)
- B(f);N_GUARD::S(D)
- S(b);SBLOCK::S(D)
- S(h);N_GUARD::S(F),XP(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).