MESON Chess Problem Database

Problem Display
PID: 9343 (K2N3R/8/2p2Bkp/2PpbnrN/Q5R1/1B6/8/8 w - - 0 1)

Block, AB

International Chess Magazine, 1885

K2N3R/8/2p2Bkp/2PpbnrN/Q5R1/1B6/8/8

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh5
      • 2.Rxg5#
    • 1...Rxg4
      • 2.Qxg4#
    • 1...d4
      • 2.Bf7#
  • Keys
    • 1.Qe4!
      • 1...Kxh5
        • 2.Rxg5#
      • 1...Rxg4
        • 2.Qxg4#
      • 1...Bxf6
        • 2.Qe8#
      • 1...dxe4
        • 2.Bf7#
      • 1...Ba1
        • 2.Qe8#
      • 1...Bb2
        • 2.Qe8#
      • 1...Bh2
        • 2.Qe8#
      • 1...Bc3
        • 2.Qe8#
      • 1...Bg3
        • 2.Qe8#
      • 1...Bd4
        • 2.Qe8#
      • 1...Bf4
        • 2.Qe8#
      • 1...Bd6
        • 2.Qe8#
      • 1...Bc7
        • 2.Qe8#
      • 1...Bb8
        • 2.Qe8#
      • 1...d4
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • K(f);N_SPINR(d),P_SPINP(g),S_FLIGHT,XS(E)::R1(C),XR(d)
    • R(d);N_SPINR(d),OGATE,XR(C)::QAR2(B),XR(d)
    • P(a);OGATE::B(A)
  • Actual
    • Q(B);P_PINS(c)
    • Vars
      • K(f);N_SPINR(d),N_SPINS(c),P_SPINP(g),S_FLIGHT,XS(E)::R1(C),XR(d)
      • R(d);N_SPINR(d),OGATE,XR(C)::QAR2(B),XR(d)
      • B(b);OGATE,XB(F)::QAB(B)
      • P(a);N_SPINS(c),OGATE,XQ(B)::B(A)
      • B(b);OGATE::QAB(B)
      • P(a);OGATE::B(A)
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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).