MESON Chess Problem Database

Problem Display
PID: 51204 (8/8/8/8/6K1/6pN/1Q2n1Pr/3R2bk w - - 0 1)

van den Elsen, MJ

Manchester Guardian, 1954

8/8/8/8/6K1/6pN/1Q2n1Pr/3R2bk

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kxg2
      • 2.Rxg1#
      • 2.Qb7#
    • 1...Sc1
      • 2.Rxg1#
    • 1...Sc3
      • 2.Rxg1#
    • 1...Sd4
      • 2.Rxg1#
    • 1...Sf4
      • 2.Rxg1#
  • Keys
    • 1.Qh8!
      • 1...Kxg2
        • 2.Qa8#
      • 1...Rxg2
        • 2.Sf2#
      • 1...Rxh3
        • 2.Qxh3#
      • 1...Sc1
        • 2.Rxg1#
      • 1...Sc3
        • 2.Rxg1#
      • 1...Sd4
        • 2.Rxg1#
      • 1...Sf4
        • 2.Rxg1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::R1(A),XB(a)
  • Actual
    • Q(B);
    • Vars
      • K(b);N_SPINB(a),OGATEB,S_FLIGHT,XP(C)::QAB(B)
      • R(d);SBLOCK,XP(C)::QAR(B)+S(D),DCHECK
      • R(d);OGATE,P_SPINR(d),XS(D)::QAR2(B),XR(d)
      • S(c);N_GUARD::R1(A),XB(a)
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