MESON Chess Problem Database
Problem Display
PID: 180511 (B7/3N4/KQ1B3N/3P4/p1p1kp1R/6q1/4P2n/bn6 w - - 0 1)
Lider, Valentin Viktorovich
Sp. HM., Komsomolska Iskra, 1964
#2
9 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Rxf4#
- 1...Qg1
- 2.Rxf4#
- 1...Qg2
- 2.Rxf4#
- 1...Qa3
- 2.Rxf4#
- 1...Qb3
- 2.Rxf4#
- 1...Qc3
- 2.Rxf4#
- 1...Qd3
- 2.Rxf4#
- 1...Qh3
- 2.Rxf4#
- 1...Qg6
- 2.Rxf4#
- 1...Qg7
- 2.Rxf4#
- 1...Qg8
- 2.Rxf4#
- 1...Bf6
- 2.Sxf6#
- 1...Sc3
- 2.Sf6#
- 1...c3
- 2.Sf6#
- 1...Qe1
- Tries
- 1.Bxf4?
- threat
- 2.d6#
- 1...Qxh4
- 2.Qe3#
- 1...Qg4
- 2.Qe3#
- 1...Qd3
- 2.Bxh2#
- 1...Qg5
- 2.Qe3#
- 1...Qg8
- 2.Qe3#
- 1...Sc3
- 2.Sf6#
- 1...Sg4!
- threat
- 1.Bc5?
- threat
- 2.d6#
- 1...Qd3
- 2.Qg6#
- 1...Qg5
- 2.Qxb1#
- 1...Qg8
- 2.Qxb1#
- 1...Sc3
- 2.Qe6#
- 1...Bd4!
- threat
- 1.Bxf4?
- Keys
- 1.Be5!
- threat
- 2.d6#
- 1...Bd4
- 2.Qxd4#
- 1...Qd3
- 2.Rxf4#
- 1...Qg8
- 2.Rxf4#
- 1...Sc3
- 2.Qd4#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- Q(d);N_GUARD::R1(B),XP(h)
- B(a);N_GUARD::S(H),XB(a)
- S(b);S_CUTB(a)::S(H)
- P(f);S_CUTB(a)::S(H)
- Tries
- Try
- B(F);XP(h)
- Threat
- B(I)+P(C)
- Vars
- Q(d);N_GUARD,XR(B)::QAR1(E)
- Q(d);N_GUARD::QAR1(E)
- Q(d);OGATE::R(B)+B(F),XS(c)
- S(b);S_CUTB(a)::S(H)
- Refutation
- S(c);
- Try
- B(F);
- Threat
- B(I)+P(C)
- Vars
- Q(d);N_GUARD::QAB(E)
- Q(d);N_GUARD::QAB(E),XS(b)
- S(b);S_CUTB(a)::QAR2(E)
- Refutation
- B(a);
- Try
- Actual
- B(F);
- Threat
- B(I)+P(C)
- Vars
- B(a);N_GUARD::QAR1(E),XB(a)
- Q(d);N_GUARD::R1(B),XP(h)
- S(b);S_CUTB(a)::QAR1(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).