MESON Chess Problem Database

Problem Display
PID: 227912 (8/5K1n/6p1/2p1k3/2R1P1Q1/8/7b/8 w - - 0 1)

Kohn, Andor

Nepszava, 1926

8/5K1n/6p1/2p1k3/2R1P1Q1/8/7b/8

#2

4 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qg3#
    • 1...Bg3
      • 2.Qxg3#
    • 1...Bf4
      • 2.Qe6#
  • Keys
    • 1.Ke7!
      • 1...Bg1
        • 2.Qg3#
      • 1...Bg3
        • 2.Qxg3#
      • 1...Bf4
        • 2.Qe6#
      • 1...Sg5
        • 2.Qxg5#
      • 1...Sf6
        • 2.Qg5#
      • 1...Sf8
        • 2.Qg5#
      • 1...g5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAB(C)
    • B(a);N_GUARD::QAB(C),XB(a)
    • B(a);SBLOCK::QAR1(C)
  • Actual
    • K(D);P-FLIGHT
    • Vars
      • B(a);N_GUARD::QAB(C)
      • B(a);N_GUARD::QAB(C),XB(a)
      • B(a);SBLOCK::QAR1(C)
      • S(e);N_GUARD::QAR2(C),XS(e)
      • S(e);N_GUARD::QAR2(C)
      • P(d);N_GUARD::QAR1(C)
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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).