MESON Chess Problem Database

Problem Display
PID: 264118 (6K1/2b1Qpp1/3Pn3/2p2pr1/R1b1kB1R/1nr1NN2/4P3/8 w - - 0 1)

ten Cate, Pieter

Tijdschrift vd KNSB, 1946

6K1/2b1Qpp1/3Pn3/2p2pr1/R1b1kB1R/1nr1NN2/4P3/8

#2

9 + 11

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ba5
      • 2.Qb7#
    • 1...Bb6
      • 2.Qb7#
    • 1...Bxd6
      • 2.Qb7#
    • 1...Bb8
      • 2.Qb7#
    • 1...Bd8
      • 2.Qb7#
    • 1...Sd4
      • 2.Sd2#
      • 2.Sxg5#
    • 1...f6
      • 2.Qxe6#
  • Tries
    • 1.Rxc4+?
      • 1...Sd4
        • 2.Sd2#
        • 2.Sxg5#
      • 1...Rxc4!
  • Keys
    • 1.Qxf7!
      • threat
        • 2.Qxe6#
      • 1...Bxd6
        • 2.Qb7#
      • 1...Sxf4
        • 2.Qe6#
      • 1...Rg4
        • 2.Qxf5#
      • 1...Rg6
        • 2.Qxf5#
      • 1...Sbd4
        • 2.Sd2#
      • 1...Sed4
        • 2.Sxg5#
      • 1...Sd8
        • 2.Qd5#
      • 1...Sf8
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 5
  • Sets
    • B(i);OGATE::QAB(H)
    • B(i);OGATE,XP(G)::QAB(H)
    • P(j);N_GUARD::QAR2(H),XS(h)
  • Tries
    • Try
      • R(D);CHECK,XB(c)
      • Refutation
        • R(b);XR(D)
  • Actual
    • Q(H);N_PINS(h),XP(j)
    • Threat
      • QAR2(H),XS(h)
    • Vars
      • B(i);OGATE,XP(G)::QAB(H)
      • S(h);P_PINQ(H),P_SPINS(h),XB(E)::QAR2(H)
      • R(g);N_GUARD::QAB1(H),XP(f)
      • S(a);N_GUARD,N_SPINB(c),SBLOCK::S(C)
      • S(h);N_GUARD,N_SPINB(c),P_PINQ(H),SBLOCK::S(C),XR(g)
      • S(h);OGATE,P_PINQ(H)::QAB1(H)
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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).