MESON Chess Problem Database

Problem Display
PID: 180357 (8/3N4/4pP1p/4P2k/5Pn1/4R1P1/3P1P1P/1B1QK2R w - - 0 1)

Lider, Valentin Viktorovich

1st HM., Scacchi e Scienze Applicate 06. TT, 1990

8/3N4/4pP1p/4P2k/5Pn1/4R1P1/3P1P1P/1B1QK2R

#2

13 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Ke2?
      • 1...Sxf2
        • 2.Kxf2#
      • 1...Sxh2
        • 2.Ke1#
      • 1...Sxe3
        • 2.Kxe3#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...Sxe5!
    • 1.Rf3?
      • 1...Sxf2
        • 2.Rxf2#
      • 1...Sxh2
        • 2.Ra3#
        • 2.Rb3#
        • 2.Rc3#
        • 2.Re3#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...Se3
        • 2.Rxe3#
      • 1...Sxe5!
  • Keys
    • 1.Re2!
      • 1...Sxf2
        • 2.Rxf2#
      • 1...Sxh2
        • 2.Re3#
      • 1...Sxe5
        • 2.Rxe5#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...Se3
        • 2.Rxe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);N_PINS(a),P-FLIGHT
      • Vars
        • S(a);XP(F)::QAB(B)+K(C),XS(a)
        • S(a);P_SPINS(a),XP(G)::QAB(B)+K(C)
        • S(a);XR(H)::QAB(B)+K(C),XS(a)
        • S(a);XP(L)::S(M),XS(a)
      • Refutation
        • S(a);XP(K)
    • Try
      • R(H);N_PINS(a)
      • Vars
        • S(a);OGATE,XP(F)::QAB(B)+R(H),XS(a)
        • S(a);XP(L)::S(M),XS(a)
        • S(a);OGATEB::QAB(B)+R(H),XS(a)
      • Refutation
        • S(a);XP(K)
  • Actual
    • R(H);N_PINS(a)
    • Vars
      • S(a);OGATE,XP(F)::QAB(B)+R(H),XS(a)
      • S(a);OGATEB,P_SPINS(a),XP(G)::QAB(B)+R(H)
      • S(a);OGATE,XP(K)::QAB(B)+R(H),DCHECK,XS(a)
      • S(a);XP(L)::S(M),XS(a)
      • S(a);OGATEB::QAB(B)+R(H),XS(a)
HTML5 logo

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).