MESON Chess Problem Database
Problem Display
PID: 225396 (7R/8/4p3/5p2/6nK/R2QnkBB/8/7b w - - 0 1)
Bogdanov, Evgeny Mikhailovich
Praca, 2000
#2
6 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sf2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Se5
- 2.Qxe3#
- 1...Sf6
- 2.Qxe3#
- 1...Sh6
- 2.Qxe3#
- 1...Sf2
- Tries
- 1.Bf1?
- 1...Bg2
- 2.Be2#
- 1...Sf2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Se5
- 2.Qxe3#
- 1...Sf6
- 2.Qxe3#
- 1...Sh6
- 2.Qxe3#
- 1...e5
- 2.Qxf5#
- 1...f4!
- 1...Bg2
- 1.Ra2?
- 1...Bg2
- 2.Bxg2#
- 1...Sf2
- 2.Rxf2#
- 1...Sh2
- 2.Rf2#
- 1...Se5
- 2.Rf2#
- 1...Sf6
- 2.Rf2#
- 1...Sh6
- 2.Rf2#
- 1...f4
- 2.Bxg4#
- 1...e5!
- 1...Bg2
- 1.Ra4?
- threat
- 2.Rf4#
- 1...f4
- 2.Rxf4#
- 1...e5!
- threat
- 1.Bf1?
- Keys
- 1.Rf8!
- 1...Bg2
- 2.Bxg4#
- 1...Sf2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Se5
- 2.Qxe3#
- 1...Sf6
- 2.Qxe3#
- 1...Sh6
- 2.Qxe3#
- 1...f4
- 2.Rxf4#
- 1...e5
- 2.Rxf5#
- 1...Bg2
- 1.Rf8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD::QAR1(B),XS(b)
- Tries
- Try
- B(D);
- Vars
- B(a);SBLOCK::B(D)
- S(d);N_GUARD::QAR1(B),XS(b)
- P(f);N_GUARD::QAR2(B),XP(e)
- Refutation
- P(e);
- Try
- R(A);
- Vars
- B(a);N_GUARD::B(D),XB(a)
- S(d);N_GUARD::R1(A),XS(d)
- S(d);N_GUARD::R1(A)
- P(e);N_GUARD::B(D),XS(d)
- Refutation
- P(f);
- Try
- R(A);
- Threat
- R1(A)
- Vars
- P(e);::R1(A),XP(e)
- Refutation
- P(f);
- Try
- Actual
- R(F);P_PINP(e)
- Vars
- B(a);SBLOCK::B(D),XS(d)
- S(d);N_GUARD::QAR1(B),XS(b)
- S(d);N_GUARD,N_SPINP(e)::QAR1(B),XS(b)
- P(e);OGATE::R1(F),XP(e)
- P(f);N_GUARD::R(F),XP(e)
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).