MESON Chess Problem Database
Problem Display
PID: 251369 (8/7p/nR1BnP1K/3kN3/2pbp3/8/3Q4/8 w - - 0 1)
Dittrich, Kurt
Die Schwalbe, 1930
#2
6 + 7
SOLUTION
- SOUND
- Sets
- 1...c3
- 2.Qa2#
- 1...e3
- 2.Qg2#
- 1...c3
- Tries
- 1.Sg6?
- threat
- 2.Se7#
- 1...Sf4
- 2.Sxf4#
- 1...Sec5
- 2.Sf4#
- 1...Sg5
- 2.Sf4#
- 1...Sec7
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...Sd8
- 2.Sf4#
- 1...Sf8
- 2.Sf4#
- 1...c3
- 2.Qa2#
- 1...e3
- 2.Qg2#
- 1...hxg6!
- threat
- 1.Sg6?
- Keys
- 1.Sd3!
- 1...Be3+
- 2.Sf4#
- 1...Bxb6
- 2.Sb4#
- 1...Bxf6
- 2.Sb4#
- 2.Sf4#
- 1...cxd3
- 2.Qa2#
- 1...exd3
- 2.Qg2#
- 1...Ba1
- 2.Sb4#
- 2.Sf4#
- 1...Bg1
- 2.Sb4#
- 2.Sf4#
- 1...Bb2
- 2.Sb4#
- 2.Sf4#
- 1...Bf2
- 2.Sb4#
- 2.Sf4#
- 1...Bc3
- 2.Sb4#
- 2.Sf4#
- 1...Bc5
- 2.Sb4#
- 2.Sf4#
- 1...Be5
- 2.Sb4#
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sec5
- 2.Sf4#
- 1...Sg5
- 2.Sf4#
- 1...Sec7
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...Sd8
- 2.Sf4#
- 1...Sf8
- 2.Sf4#
- 1...c3
- 2.Qa2#
- 1...e3
- 2.Qg2#
- 1...Sb4
- 2.Sxb4#
- 1...Sac5
- 2.Sb4#
- 1...Sac7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Be3+
- 1.Sd3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 15
- REMOVED MATES = 0
- Sets
- P(a);OGATEB::QAB(A)
- P(c);OGATEB::QAB(A)
- Tries
- Try
- S(B);
- Threat
- S(B)
- Vars
- S(f);N_GUARD::S(B),XS(f)
- S(f);N_GUARD::S(B)
- P(a);OGATEB::QAB(A)
- P(c);OGATEB::QAB(A)
- Refutation
- P(g);XS(B)
- Try
- Actual
- S(B);N_PINB(b)
- Vars
- B(b);CHECK::QAR(A)+S(B),DCHECK
- B(b);XR(C)::QAR(A)+S(B),DCHECK
- P(a);OGATEB,XS(B)::QAB(A)
- P(c);OGATEB,XS(B)::QAB(A)
- S(f);N_GUARD::S(B),XS(f)
- S(f);N_GUARD::S(B)
- P(a);OGATEB::QAB(A)
- P(c);OGATEB::QAB(A)
- S(e);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::S(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).