MESON Chess Problem Database
Problem Display
PID: 227879 (b7/4b3/2Q2p2/2Pqk3/3N2P1/2B3P1/3KN3/1B6 w - - 0 1)
Zilahi, Zoltan
Ujsag, 1926
#2
9 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Sc2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Se6#
- 2.Qe6#
- 1...Qa2+
- 2.Sc2#
- 1...Qg2
- 2.Sc2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Se6#
- 2.Qe6#
- 1...Qb3
- 2.Sxb3#
- 2.Sf3#
- 1...Qf3
- 2.Sxf3#
- 2.Qe6#
- 1...Qc4
- 2.Sf3#
- 1...Qe4
- 2.Sf3#
- 2.Qe6#
- 1...Qe6
- 2.Sc2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sxe6#
- 2.Qxe6#
- 1...Qf7
- 2.Sc2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Se6#
- 1...Qg8
- 2.Sc2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Se6#
- 1...Qxd4+
- 2.Bxd4#
- 1...Qxc5
- 2.Sf3#
- 2.Qe6#
- 1...Qd8
- 2.Qe6#
- 1...Qh1
- Keys
- 1.Sf4!
- threat
- 2.Sg6#
- 1...Qa2+
- 2.Sc2#
- 1...Qg2+
- 2.Sde2#
- 1...Qxd4+
- 2.Sd3#
- 1...Qxc6
- 2.Sde2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sxc6#
- 2.Sde6#
- 1...Qe4
- 2.Sf3#
- 2.Qe6#
- 1...Qf7
- 2.Sc2#
- 2.Sde2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sde6#
- 2.Sd3#
- 1...Qg8
- 2.Sc2#
- 2.Sde2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sde6#
- 2.Sd3#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- Q(a);CHECK,N_PINS(F)::B(D)+S(F)
- Q(a);N_PINS(F)::B(D)+S(F),DCHECK
- Q(a);CHECK,OGATE,P_SPINQ(a),XS(F)::B(D),XQ(a)
- Q(a);N_GUARD::QAR1(I)
- Actual
- S(C);
- Threat
- S(C)
- Vars
- Q(a);CHECK,N_PINS(F)::B(D)+S(F)
- Q(a);CHECK,P_SPINQ(a),XS(F)::S(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).