MESON Chess Problem Database
Problem Display
PID: 177869 (8/8/2B3p1/5p2/N1bp1pN1/1r1kB1rQ/2p1p1P1/2n1K3 w - - 0 1)
Efrosinin, Oleg
Vaulin, Evgeny A
Sahs (Latvia), 1990
#2
7 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Sb2#
- 2.Sc5#
- 1...Rxg2
- 2.Se5#
- 1...Rxe3
- 2.Sf2#
- 2.Se5#
- 1...fxe3
- 2.Se5#
- 1...Rc3
- Tries
- 1.Bd2?
- threat
- 2.Sc5#
- 2.Sf2#
- 2.Se5#
- 1...fxg4
- 2.Sc5#
- 1...Bb5
- 2.Se5#
- 1...Ba6
- 2.Se5#
- 1...Be6
- 2.Se5#
- 1...Bf7
- 2.Se5#
- 1...Bg8
- 2.Se5#
- 1...Rb5
- 2.Sf2#
- 1...Bd5!
- threat
- 1.Bxf4?
- threat
- 2.Sf2#
- 2.Se5#
- 2.Qxg3#
- 1...Rxh3
- 2.Sf2#
- 2.Se5#
- 1...fxg4
- 2.Qxg3#
- 1...Bb5
- 2.Se5#
- 1...Ba6
- 2.Se5#
- 1...Be6
- 2.Se5#
- 1...Bf7
- 2.Se5#
- 1...Bg8
- 2.Se5#
- 1...Rb5
- 2.Sf2#
- 2.Qxg3#
- 1...Re3
- 2.Sf2#
- 2.Se5#
- 1...Rf3
- 2.Sf2#
- 2.Se5#
- 2.Qxf3#
- 1...Bd5!
- threat
- 1.Bd2?
- Keys
- 1.Qh8!
- threat
- 2.Qxd4#
- 1...Rxe3
- 2.Sf2#
- 1...dxe3
- 2.Sc5#
- 1...fxe3
- 2.Se5#
- threat
- 1.Qh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(f);XP(B)::S(F)
- P(i);SBLOCK,XB(C)::S(F)
- Tries
- Try
- B(C);P_PINR(f)
- Threat
- DUALS(3)
- Vars
- P(j);XS(F)::S(E)
- B(g);::S(F)
- R(d);::S(F)
- Refutation
- B(g);
- Try
- B(C);P_PINR(f),XP(i)
- Threat
- DUALS(3)
- Vars
- P(j);XS(F)::QAR(D),XR(f)
- B(g);::S(F)
- Refutation
- B(g);
- Try
- Actual
- Q(D);
- Threat
- QAR1(D),XP(h)
- Vars
- R(f);SBLOCK,XB(C)::S(F)
- P(h);XB(C)::S(E)
- P(i);SBLOCK,XB(C)::S(F)
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).