MESON Chess Problem Database
Problem Display
PID: 122236 (8/8/1b2K3/5pp1/1Q4N1/4N3/3p4/3n1Rnk w - - 0 1)
Scheel, Johan
Norsk Sjakkblad, 1919
#2
5 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bxe3
- 2.Qb7#
- 1...Bd4
- 2.Qb7#
- 1...Ba5
- 2.Qb7#
- 1...Bc5
- 2.Qb7#
- 1...Ba7
- 2.Qb7#
- 1...Bc7
- 2.Qb7#
- 1...Bd8
- 2.Qb7#
- 1...Bxe3
- Tries
- 1.Qxd2?
- threat
- 2.Qg2#
- 2.Qh2#
- 2.Qd5#
- 1...Bxe3
- 2.Qh2#
- 2.Qd5#
- 1...Sxe3
- 2.Qh2#
- 1...fxg4
- 2.Qg2#
- 1...Bd4
- 2.Qg2#
- 2.Qh2#
- 1...Bc7
- 2.Qg2#
- 2.Qd5#
- 1...Sc3
- 2.Qg2#
- 2.Qh2#
- 1...f4
- 2.Qg2#
- 2.Qh2#
- 1...Sf2!
- threat
- 1.Qxd2?
- Keys
- 1.Qb1!
- 1...Bxe3
- 2.Qb7#
- 1...Sxe3
- 2.Rxg1#
- 1...fxg4
- 2.Qh7#
- 1...Sf2
- 2.Rxg1#
- 1...Bd4
- 2.Qb7#
- 1...Ba5
- 2.Qb7#
- 1...Bc5
- 2.Qb7#
- 1...Ba7
- 2.Qb7#
- 1...Bc7
- 2.Qb7#
- 1...Bd8
- 2.Qb7#
- 1...Sb2
- 2.Rxg1#
- 1...Sc3
- 2.Rxg1#
- 1...f4
- 2.Qh7#
- 1...Bxe3
- 1.Qb1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- B(g);OGATE,XS(B)::QAB(C)
- B(g);OGATE::QAB(C)
- Tries
- Try
- Q(C);XP(d)
- Threat
- DUALS(3)
- Vars
- S(a);XS(B)::QAR1(C)
- P(e);XS(D)::QAB1(C)
- Refutation
- S(a);
- Try
- Actual
- Q(C);
- Vars
- B(g);OGATE,XS(B)::QAB(C)
- S(a);XS(B)::R1(A),XS(b)
- P(e);OGATE,XS(D)::QAR(C)
- S(a);::R1(A),XS(b)
- B(g);OGATE::QAB(C)
- 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).