MESON Chess Problem Database
Problem Display
PID: 220720 (7k/2p4p/8/2p2pR1/2n2Q2/3b2K1/8/3R4 w - - 0 1)
Uhler, Ekkehard
Badische Neueste Nachrichten, 1983
#2
4 + 7
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bb1
- 2.Rd8#
- 1...Bf1
- 2.Rd8#
- 1...Bc2
- 2.Rd8#
- 1...Be2
- 2.Rd8#
- 1...Be4
- 2.Rd8#
- 1...Sb2
- 2.Qe5#
- 1...Sd2
- 2.Qe5#
- 1...Sa3
- 2.Qe5#
- 1...Se3
- 2.Qe5#
- 1...Sa5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sd6
- 2.Qe5#
- 1...c6
- 2.Qb8#
- 1...Bb1
- Tries
- 1.Rg6?
- 1...h5
- 2.Qh6#
- 1...h6
- 2.Qxh6#
- 1...Bb1
- 2.Rd8#
- 1...Bf1
- 2.Rd8#
- 1...Bc2
- 2.Rd8#
- 1...Be2
- 2.Rd8#
- 1...Be4
- 2.Rd8#
- 1...Sb2
- 2.Qe5#
- 1...Sd2
- 2.Qe5#
- 1...Sa3
- 2.Qe5#
- 1...Se3
- 2.Qe5#
- 1...Sa5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sd6
- 2.Qe5#
- 1...c6
- 2.Qb8#
- 1...hxg6!
- 1...h5
- 1.Qxc7?
- threat
- 2.Qb8#
- 2.Qd8#
- 2.Qg7#
- 2.Qc8#
- 1...Sb6
- 2.Qe5#
- 2.Qd8#
- 2.Qg7#
- 1...Sd6
- 2.Qg7#
- 1...h5
- 2.Qg7#
- 1...h6
- 2.Qg7#
- 1...f4+!
- threat
- 1.Qd4+?
- 1...Se5
- 2.Qxe5#
- 2.Qd8#
- 1...cxd4!
- 1...Se5
- 1.Rg6?
- Keys
- 1.Rg4!
- 1...fxg4
- 2.Qf8#
- 1...h5
- 2.Qh6#
- 1...h6
- 2.Qxh6#
- 1...Bb1
- 2.Rd8#
- 1...Bf1
- 2.Rd8#
- 1...Bc2
- 2.Rd8#
- 1...Be2
- 2.Rd8#
- 1...Be4
- 2.Rd8#
- 1...Sb2
- 2.Qe5#
- 1...Sd2
- 2.Qe5#
- 1...Sa3
- 2.Qe5#
- 1...Se3
- 2.Qe5#
- 1...Sa5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sd6
- 2.Qe5#
- 1...c6
- 2.Qb8#
- 1...fxg4
- 1.Rg4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(a);OGATE::R(A)
- S(b);N_GUARD::QAB(C)
- S(b);N_GUARD::QAB(C),XS(b)
- P(e);OGATE::QAR(C)
- Tries
- Try
- R(D);
- Vars
- P(f);OGATEB::QAR2(C)
- P(f);OGATEB::QAR2(C),XP(f)
- B(a);OGATE::R(A)
- S(b);N_GUARD::QAB(C)
- S(b);N_GUARD::QAB(C),XS(b)
- P(e);OGATE::QAR(C)
- Refutation
- P(f);XR(D)
- Try
- Q(C);XP(e)
- Threat
- DUALS(4)
- Vars
- S(b);::QAB1(C)
- P(f);::QAB1(C)
- Refutation
- P(d);CHECK
- Try
- Q(C);CHECK
- Refutation
- P(c);XQ(C)
- Try
- Actual
- R(D);
- Vars
- P(d);OGATE,XR(D)::QAR2(C)
- P(f);OGATEB::QAR2(C)
- P(f);OGATEB::QAR2(C),XP(f)
- B(a);OGATE::R(A)
- S(b);N_GUARD::QAB(C)
- S(b);N_GUARD::QAB(C),XS(b)
- P(e);OGATE::QAR(C)
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).