MESON Chess Problem Database

Problem Display
PID: 102486 (8/6B1/1K6/1P6/1NkN2Q1/1p3pp1/b5q1/3R2b1 w - - 0 1)

Groeneveld, Cornelis

Le Courrier des Echecs, 1957

8/6B1/1K6/1P6/1NkN2Q1/1p3pp1/b5q1/3R2b1

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Sdc2#
      • 2.Se2#
      • 2.Sxf3#
      • 2.Sf5#
      • 2.Sdc6#
      • 2.Se6#
    • 1...Bxd4+
      • 2.Qxd4#
    • 1...f2
      • 2.Sf3#
  • Keys
    • 1.Ka5!
      • threat
        • 2.Qc8#
      • 1...Kc3
        • 2.Se2#
      • 1...Kc5
        • 2.Se6#
      • 1...Bxd4
        • 2.Qxd4#
      • 1...Qh3
        • 2.Rc1#
      • 1...f2
        • 2.Rc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(a);CHECK,OGATE,P_SPINB(a),XS(C)::QAR1(D),XB(a)
    • P(e);N_PINS(C)::QAR(D)+S(C)
  • Actual
    • K(F);N_SPINS(C),S_FLIGHT
    • Threat
      • QAR(D)
    • Vars
      • K(g);P-FLIGHT::B(G)+S(C),DCHECK
      • K(g);P-FLIGHT::S(C)
      • B(a);OGATE,P_SPINB(a),XS(C)::QAR1(D),XB(a)
      • Q(c);N_GUARD::R(A)
      • P(e);S_CUTQ(c)::R(A)
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