MESON Chess Problem Database
Problem Display
PID: 199256 (3B1R2/6R1/3p1n1p/5P1p/3P1k2/5N2/1p4K1/1Bb3Q1 w - - 0 1)
Dittrich, Stefan
Suomen Shakki, 1987
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Be3
- 2.Qh2#
- 1...d5
- 2.Bc7#
- 1...Be3
- Tries
- 1.Se1?
- threat
- 2.Qf2#
- 1...Be3
- 2.Qh2#
- 1...Se4
- 2.Sd3#
- 1...Sg4!
- threat
- 1.Sh4?
- threat
- 2.Qf2#
- 1...Be3
- 2.Qh2#
- 1...Sg4
- 2.Sg6#
- 1...Se4!
- threat
- 1.Qe1?
- 1...Se4
- 2.Qxe4#
- 1...Bd2
- 2.Qxd2#
- 1...Be3
- 2.Qg3#
- 1...Sg4
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- 1...Sg8
- 2.Qe4#
- 1...d5
- 2.Bc7#
- 2.Qe5#
- 1...h4!
- 1...Se4
- 1.Se1?
- Keys
- 1.Se5!
- threat
- 2.Qf2#
- 1...Se4
- 2.Sd3#
- 1...Be3
- 2.Qh2#
- 1...Sg4
- 2.Sg6#
- threat
- 1.Se5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(a);SBLOCK::QAB(B)
- P(e);OGATEB::B(H)
- Tries
- Try
- S(D);
- Threat
- QAR2(B)
- Vars
- B(a);SBLOCK::QAB(B)
- S(f);SBLOCK::S(D)
- Refutation
- S(f);
- Try
- S(D);
- Threat
- QAR2(B)
- Vars
- B(a);SBLOCK::QAB(B)
- S(f);SBLOCK::S(D)
- Refutation
- S(f);
- Try
- Q(B);
- Vars
- S(f);N_GUARD::QAR1(B),XS(f)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);SBLOCK::QAB1(B)
- S(f);N_GUARD::QAR1(B)
- Refutation
- P(d);
- Try
- Actual
- S(D);
- Threat
- QAR2(B)
- Vars
- S(f);SBLOCK::S(D)
- B(a);SBLOCK::QAB(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).