MESON Chess Problem Database

Problem Display
PID: 227260 (8/1K2p3/3k4/8/P1Q4B/8/8/8 w - - 0 1)

Zimanskis, AC

Die Schwalbe, 1928

8/1K2p3/3k4/8/P1Q4B/8/8/8

#2

4 + 2

5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qc6#
    • 1...e6
      • 2.Qd4#
  • Tries
    • 1.Bg3+?
      • 1...Kd7
        • 2.Qc8#
      • 1...e5!
  • Keys
    • 1.Qe4!
      • 1...Kc5
        • 2.Bxe7#
      • 1...Kd7
        • 2.Qxe7#
      • 1...e5
        • 2.Qc6#
      • 1...e6
        • 2.Qd4#

This anticipates 79260(1960)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAR1(B)
    • P(b);SBLOCK::QAR2(B)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • P(b);P_SPINP(b)
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::B(C),XP(b)
      • K(a);P-FLIGHT::QAR1(B),XP(b)
      • P(b);SBLOCK::QAR1(B)
      • P(b);SBLOCK::QAR2(B)
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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).