MESON Chess Problem Database

Problem Display
PID: 227654 (4N3/7p/5bpk/3R2R1/3B2Pp/7P/8/4K3 w - - 0 1)

Zilahi, Zoltan

Nepszava, 1926

4N3/7p/5bpk/3R2R1/3B2Pp/7P/8/4K3

#2

7 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxg5
      • 2.Bg7#
    • 1...Be7
      • 2.Bg7#
    • 1...Bg7
      • 2.Bxg7#
    • 1...Bd8
      • 2.Bg7#
  • Tries
    • 1.Be3?
      • threat
        • 2.Rh5#
      • 1...Bxg5
        • 2.Bxg5#
      • 1...Bc3+!
  • Keys
    • 1.Rd6!
      • 1...Kxg5
        • 2.Be3#
      • 1...Bxd4
        • 2.Rh5#
      • 1...Bxg5
        • 2.Bg7#
      • 1...Be5
        • 2.Rh5#
      • 1...Be7
        • 2.Rh5#
      • 1...Bg7
        • 2.Rh5#
      • 1...Bd8
        • 2.Rh5#
      • 1...Bh8
        • 2.Rh5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(b);OGATE,XR(F)::B(C)
    • B(b);OGATE::B(C)
    • B(b);OGATE::B(C),XB(b)
  • Tries
    • Try
      • B(C);
      • Threat
        • B(C)+R(F),DCHECK
      • Vars
        • B(b);OGATE,P_SPINB(b),XR(F)::B(C),XB(b)
      • Refutation
        • B(b);CHECK
  • Actual
    • R(E);
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(F)::B(C)
      • B(b);P_SPINP(c),XB(C)::R1(F)
      • B(b);OGATE,P_SPINP(c),SBLOCK,XR(F)::B(C)
      • B(b);P_SPINP(c)::R1(F)
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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).