MESON Chess Problem Database

Problem Display
PID: 263746 (q5k1/1pB2p1p/4prpP/p2NQ3/6bb/8/5PP1/2R4K w - - 0 1)

Willems, PJH

Tijdschrift vd NSB, 1942

q5k1/1pB2p1p/4prpP/p2NQ3/6bb/8/5PP1/2R4K

#2

8 + 11

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf2
      • 2.Qg7#
    • 1...Rf3
      • 2.Qg7#
    • 1...Rf4
      • 2.Qg7#
    • 1...Rf5
      • 2.Qg7#
  • Keys
    • 1.Bb8!
      • threat
        • 2.Rc8#
      • 1...Kf8
        • 2.Rc8#
      • 1...Kh8
        • 2.Rc8#
      • 1...Qxb8
        • 2.Qxb8#
      • 1...Rxf2
        • 2.Qg7#
      • 1...exd5
        • 2.Qe8#
      • 1...Rf3
        • 2.Qg7#
      • 1...Rf4
        • 2.Qg7#
      • 1...Rf5
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(e);OGATE,XP(C)::QAR1(F)
    • R(e);OGATE::QAR1(F)
  • Actual
    • B(H);
    • Threat
      • R(A)
    • Vars
      • K(k);P-FLIGHT::R(A)
      • K(k);P-FLIGHT,P_SPINR(e)::R(A)
      • Q(j);OGATE,XB(H)::QAR(F),XQ(j)
      • R(e);OGATE,XP(C)::QAR1(F)
      • P(d);OGATE,XS(E)::QAR2(F)
      • R(e);OGATE::QAR1(F)
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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).