MESON Chess Problem Database
Problem Display
PID: 142548 (2Q5/3p1r2/5R2/4p3/2BN1r2/1p2k1P1/3R1N2/3K4 w - - 0 1)
Popov, Valery
1st Prize, Birnov MT, 2006
#2
8 + 6
| 23 | Die Schwalbe | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.Rd3#
- 1...Rg4
- 2.Rd3#
- 1...Rh4
- 2.Rd3#
- 1...Re4
- Tries
- 1.Ke1?
- threat
- 2.Rd3#
- 1...Rxd4
- 2.Re2#
- 1...e4
- 2.Sd1#
- 1...Rxf2!
- threat
- 1.Bd5?
- threat
- 2.Qc3#
- 1...exd4
- 2.Re2#
- 1...Rxd4!
- threat
- 1.Qc5?
- threat
- 2.Re2#
- 1...Rxf2
- 2.Qxe5#
- 1...Rxd4
- 2.Rd3#
- 1...exd4!
- threat
- 1.Qb8?
- threat
- 2.Qxb3#
- 1...Rxf2
- 2.Qxe5#
- 1...exd4
- 2.Qxf4#
- 1...b2
- 2.Qb3#
- 1...Rxd4!
- threat
- 1.Ke1?
- Keys
- 1.Qb7!
- threat
- 2.Qxb3#
- 1...Rxf2
- 2.Rd3#
- 1...Rxd4
- 2.Qf3#
- 1...exd4
- 2.Re2#
- 1...b2
- 2.Sc2#
- 2.Qb3#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(c);::R1(B)
- Tries
- Try
- K(A);P-FLIGHT
- Threat
- R1(B)
- Vars
- R(c);SBLOCK,XS(F)::R1(B)
- P(d);SBLOCK::S(C)
- Refutation
- R(c);XS(C)
- Try
- B(E);
- Threat
- QAR2(H)
- Vars
- P(d);SBLOCK,XS(F)::R1(B)
- Refutation
- R(c);P_PINR(B),XS(F)
- Try
- Q(H);
- Threat
- R1(B)
- Vars
- R(c);N_GUARD,XS(C)::QAR2(H),XP(d)
- R(c);P_PINR(B),P_SPINR(c),XS(F)::R1(B)
- Refutation
- P(d);P_SPINP(d),XS(F)
- Try
- Q(H);
- Threat
- QAR(H),XP(a)
- Vars
- R(c);N_GUARD,XS(C)::QAR2(H),XP(d)
- P(d);OGATE,XS(F)::QAB1(H),XR(c)
- P(a);::QAR(H)
- Refutation
- R(c);P_PINR(B),XS(F)
- Try
- Actual
- Q(H);
- Threat
- QAR(H),XP(a)
- Vars
- R(c);XS(C)::R1(B)
- R(c);N_GUARD,P_PINR(B),XS(F)::QAR1(H)
- P(d);SBLOCK,XS(F)::R1(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).