MESON Chess Problem Database

Problem Display
PID: 180410 (4R3/8/8/B2N2p1/1pKp1p2/4p1P1/4kpP1/R4N2 w - - 0 1)

Lider, Valentin Viktorovich

Problemas, 1974

4R3/8/8/B2N2p1/1pKp1p2/4p1P1/4kpP1/R4N2

#2

8 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...g4
      • 2.Sxf4#
  • Tries
    • 1.Bxb4?
      • 1...fxg3
        • 2.Sxg3#
      • 1...d3
        • 2.Sc3#
      • 1...g4
        • 2.Sxf4#
      • 1...f3!
    • 1.gxf4?
      • 1...gxf4
        • 2.Sxf4#
      • 1...b3
        • 2.Sg3#
      • 1...d3
        • 2.Rxe3#
      • 1...g4!
  • Keys
    • 1.Kxd4!
      • 1...fxg3
        • 2.Rxe3#
      • 1...b3
        • 2.Sc3#
      • 1...f3
        • 2.Rxe3#
      • 1...g4
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(g);N_GUARD::S(G),XP(f)
  • Tries
    • Try
      • B(F);XP(d)
      • Vars
        • P(f);XP(D)::S(B),XP(f)
        • P(e);N_GUARD::S(G)
        • P(g);N_GUARD::S(G),XP(f)
      • Refutation
        • P(f);
    • Try
      • P(D);XP(f)
      • Vars
        • P(g);XP(D)::S(G),XP(g)
        • P(d);::S(B)
        • P(e);N_GUARD::R1(H),XP(c)
      • Refutation
        • P(g);
  • Actual
    • K(E);P-FLIGHT,XP(e)
    • Vars
      • P(f);N_GUARD,XP(D)::R1(H),XP(c)
      • P(d);N_GUARD::S(G)
      • P(f);N_GUARD::R1(H),XP(c)
      • P(g);N_GUARD::S(G),XP(f)
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).