MESON Chess Problem Database
Problem Display
PID: 180420 (7R/3p4/p2p4/p2Q4/kb1n4/2p5/K7/3N4 w - - 0 1)
Lider, Valentin Viktorovich
64 Shakhmatnoe obozrenie, 1976
#2
4 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sb5
- 2.Qb3#
- 1...c2
- 2.Sb2#
- 1...Sb5
- Tries
- 1.Rh4?
- 1...Ba3
- 2.Qb3#
- 1...Bc5
- 2.Qb3#
- 1...Sc2
- 2.Sxc3#
- 1...Sb3
- 2.Sxc3#
- 1...Sf3
- 2.Sxc3#
- 1...Sb5
- 2.Qb3#
- 1...Sf5
- 2.Sxc3#
- 1...Sc6
- 2.Sxc3#
- 1...Se6
- 2.Sxc3#
- 1...c2
- 2.Sb2#
- 1...Se2!
- 1...Ba3
- 1.Qc4?
- threat
- 2.Sxc3#
- 1...Sb5
- 2.Qb3#
- 1...c2
- 2.Sb2#
- 2.Sc3#
- 1...Se2!
- threat
- 1.Qxd4?
- threat
- 2.Sxc3#
- 1...c2
- 2.Sc3#
- 1...Kb5!
- threat
- 1.Rh4?
- Keys
- 1.Rb8!
- 1...Ba3
- 2.Sxc3#
- 1...Bc5
- 2.Sxc3#
- 1...Sc2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sf3
- 2.Qb3#
- 1...Sb5
- 2.Qb3#
- 1...Sf5
- 2.Qb3#
- 1...Sc6
- 2.Qb3#
- 1...Se6
- 2.Qb3#
- 1...c2
- 2.Sb2#
- 1...Ba3
- 1.Rb8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD,SBLOCK::QAB1(C)
- P(a);N_GUARD::S(A)
- Tries
- Try
- R(D);
- Vars
- B(c);P_SPINS(d)::QAB1(C)
- S(d);P_SPINB(c)::S(A),XP(a)
- S(d);N_GUARD,P_SPINB(c),SBLOCK::QAB1(C)
- P(a);N_GUARD::S(A)
- Refutation
- S(d);P_SPINB(c)
- Try
- Q(C);P_PINB(c)
- Threat
- S(A),XP(a)
- Vars
- S(d);N_GUARD,SBLOCK::QAB1(C)
- Refutation
- S(d);
- Try
- Q(C);P_PINB(c),XS(d)
- Threat
- S(A),XP(a)
- Vars
- P(a);::S(A)
- Refutation
- K(b);N_SPINB(c),S_FLIGHT
- Try
- Actual
- R(D);
- Vars
- B(c);N_GUARD::S(A),XP(a)
- S(d);N_GUARD::QAB1(C)
- S(d);N_GUARD::QAB1(C),XS(d)
- P(a);N_GUARD::S(A)
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).