MESON Chess Problem Database

Problem Display
PID: 203515 (BN1b4/2p3N1/2bk1pP1/2pP1p2/5K2/8/8/5Q2 w - - 0 1)

Wigan, TK

Helsingin Sanomat, 1924

BN1b4/2p3N1/2bk1pP1/2pP1p2/5K2/8/8/5Q2

#2

7 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Qd3#
    • 1...Ba4
      • 2.Sxf5#
    • 1...Bb5
      • 2.Sxf5#
    • 1...Be8
      • 2.Sxf5#
  • Keys
    • 1.Qb5!
      • 1...Kxd5
        • 2.Qd3#
      • 1...Ke7
        • 2.Qxc5#
      • 1...Bxb5
        • 2.Sxf5#
      • 1...Bxd5
        • 2.Qd7#
      • 1...Bxa8
        • 2.Qd7#
      • 1...Bd7
        • 2.Qxd7#
      • 1...Bb7
        • 2.Qd7#
      • 1...Be8
        • 2.Sxf5#
      • 1...Be7
        • 2.Qxc6#
      • 1...c4
        • 2.Sxf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • K(d);OGATEB,P-FLIGHT,P_SPINB(c),XP(C)::QAR2(A)
    • B(c);::S(E),XP(b)
  • Actual
    • Q(A);
    • Vars
      • K(d);OGATEB,P-FLIGHT,P_SPINB(c),P_SPINP(a),XP(C)::QAR2(A)
      • K(d);S_FLIGHT::QAB(A),XP(a)
      • B(c);XQ(A)::S(E),XP(b)
      • B(c);OGATE,XP(C)::QAR1(A)
      • B(c);OGATE,XB(F)::QAR1(A)
      • B(c);OGATE::QAR1(A),XB(c)
      • B(c);OGATE::QAR1(A)
      • B(c);::S(E),XP(b)
      • B(g);SBLOCK::QAR1(A),XB(c)
      • P(a);::S(E),XP(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).