MESON Chess Problem Database
Problem Display
PID: 173089 (q2b4/4p3/r1n1N2K/p6R/3Bk1P1/1Q3b2/4rpN1/4n3 w - - 0 1)
Barulin, Mikhail Mikhailovich
Prize, Shakhmaty v SSSR, 1941
#2
7 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Qe3#
- 1...Rb2
- 2.Qe3#
- 1...Rc2
- 2.Qe3#
- 1...Rd2
- 2.Qe3#
- 1...Re3
- 2.Qxe3#
- 1...Sd3
- 2.Qd5#
- 1...Sb4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sa7
- 2.Re5#
- 1...Sb8
- 2.Re5#
- 1...Ra2
- Tries
- 1.Sgf4?
- threat
- 2.Qd5#
- 1...Sb4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sa7
- 2.Re5#
- 1...Sb8
- 2.Re5#
- 1...Sxd4!
- threat
- 1.Qb5?
- threat
- 2.Qf5#
- 1...Sxd4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Bxg4!
- threat
- 1.Sgf4?
- Keys
- 1.Bb6!
- threat
- 2.Qd5#
- 1...Sd4
- 2.Sc5#
- 1...Rd2
- 2.Qe3#
- 1...Sb4
- 2.Qc4#
- 1...Se5
- 2.Sg5#
- 1...Sa7
- 2.Qc4#
- 1...Sb8
- 2.Qc4#
- threat
- 1.Bb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(b);N_GUARD::QAR1(B)
- R(b);N_GUARD::QAR1(B),XR(b)
- S(a);SBLOCK::QAB1(B)
- S(h);N_GUARD,P_PINS(F)::R1(E)
- S(h);N_GUARD,P_PINS(F)::R1(E),XS(h)
- Tries
- Try
- S(A);
- Threat
- QAB1(B)
- Vars
- S(h);N_GUARD,P_PINS(F)::R1(E)
- S(h);N_GUARD,P_PINS(F)::R1(E),XS(h)
- Refutation
- S(h);P_PINS(F),XB(C)
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- S(h);N_GUARD,P_PINS(F),XB(C)::R1(E)
- S(h);N_GUARD,P_PINS(F)::R1(E),XS(h)
- Refutation
- B(d);XP(D)
- Try
- Actual
- B(C);
- Threat
- QAB1(B)
- Vars
- S(h);SBLOCK::S(F)
- R(b);N_GUARD::QAR1(B)
- S(h);N_GUARD::QAR2(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).