MESON Chess Problem Database
Problem Display
PID: 234120 (1R6/8/1B2N3/b6R/2PPk1N1/3n2K1/2pp4/Qn6 w - - 0 1)
Ammer, Erik
Vokal, Stanislav
Die Schwalbe, 2020
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Bc3
- 2.Qa8#
- 1...Bb4
- 2.Qa8#
- 1...Bxb6
- 2.Qa8#
- 1...Sa3
- 2.Qh1#
- 1...Sc3
- 2.Qh1#
- 1...Sc1
- 2.Sc5#
- 1...Se1
- 2.Sc5#
- 1...Sf2
- 2.Sc5#
- 1...Sb4
- 2.Sc5#
- 1...Sf4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Se5
- 2.Sc5#
- 1...Bc3
- Tries
- 1.Rd5?
- threat
- 2.Sg5#
- 1...Sc1
- 2.Sc5#
- 1...Se1
- 2.Sc5#
- 1...Sb2
- 2.Sc5#
- 1...Sf2
- 2.Sc5#
- 1...Sb4
- 2.Sc5#
- 1...Sf4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Se5!
- threat
- 1.Rf8?
- threat
- 2.Sg5#
- 1...Sc1
- 2.Sc5#
- 1...Se1
- 2.Sc5#
- 1...Sf2
- 2.Sc5#
- 1...Sb4
- 2.Sc5#
- 1...Sf4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Se5
- 2.Sc5#
- 1...Sb2!
- threat
- 1.Rd5?
- Keys
- 1.Re8!
- threat
- 2.Sc5#
- 1...Sb2
- 2.Sf4#
- 1...Sc5
- 2.Sxc5#
- 1...Bc3
- 2.Qa8#
- 1...Sc3
- 2.Qh1#
- threat
- 1.Re8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- B(f);OGATE::QAB(A)
- B(f);OGATE,XB(G)::QAB(A)
- S(a);OGATE::QAB(A)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- Tries
- Try
- R(F);
- Threat
- S(H)
- Vars
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- Refutation
- S(d);
- Try
- R(I);
- Threat
- S(H)
- Vars
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- Refutation
- S(d);
- Try
- Actual
- R(I);
- Threat
- R(I)+S(H),DCHECK
- Vars
- S(d);N_GUARD::R(I)+S(H)
- S(d);::R(I)+S(H),DCHECK,XS(d)
- B(f);OGATE::QAB(A)
- S(a);OGATE::QAB(A)
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).