MESON Chess Problem Database

Problem Display
PID: 138971 (2N5/R2K4/1N6/bk6/3Pp3/P1p1P3/2PP4/8 w - - 0 1)

Fomichev, Evgeny Vasilevich

Aleksandr Galitzky - Shakhmaty Geine (Vol 1), 2010

2N5/R2K4/1N6/bk6/3Pp3/P1p1P3/2PP4/8

#2

9 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bb4
      • 2.a4#
    • 1...Bxb6
      • 2.Sd6#
    • 1...cxd2
      • 2.c4#
  • Tries
    • 1.Kc7?
      • threat
        • 2.Sd6#
      • 1...Bb4
        • 2.a4#
      • 1...Bxb6+!
    • 1.dxc3?
      • threat
        • 2.a4#
        • 2.c4#
      • 1...Bxb6
        • 2.Sd6#
      • 1...Bxc3!
    • 1.d3?
      • 1...Bxb6
        • 2.Sd6#
      • 1...Bb4
        • 2.a4#
      • 1...exd3!
  • Keys
    • 1.Ra8!
      • 1...Bxb6
        • 2.Sd6#
      • 1...cxd2
        • 2.c4#
      • 1...Bb4
        • 2.a4#

This is a version of 138970

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(c);SBLOCK::P(C)
    • B(c);SBLOCK,XS(F)::S(I)
    • P(a);OGATE,XP(B)::P(A)
  • Tries
    • Try
      • K(H);P-FLIGHT,P_SPINS(F)
      • Threat
        • S(I)
      • Vars
        • B(c);N_PINS(F),SBLOCK::P(C)
      • Refutation
        • B(c);CHECK,XS(F)
    • Try
      • P(B);XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(c);SBLOCK,XS(F)::S(I)
      • Refutation
        • B(c);XP(B)
    • Try
      • P(B);
      • Vars
        • B(c);SBLOCK,XS(F)::S(I)
        • B(c);SBLOCK::P(C)
      • Refutation
        • P(b);XP(B)
  • Actual
    • R(G);
    • Vars
      • B(c);SBLOCK,XS(F)::S(I)
      • P(a);OGATE,XP(B)::P(A)
      • B(c);SBLOCK::P(C)
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).