MESON Chess Problem Database

Problem Display
PID: 80337 (4R3/1N6/p4KQp/rn1kpn1r/q3N3/4p3/2R3B1/8 w - - 0 1)

Hoek, Willem

Schaakmat, 1955

4R3/1N6/p4KQp/rn1kpn1r/q3N3/4p3/2R3B1/8

#2

7 + 10

5227 Schaak..., maar raak! 1969

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Qf7#
      • 2.Qg8#
    • 1...Sbd4
      • 2.Rxe5#
    • 1...Sfd4
      • 2.Rc5#
  • Keys
    • 1.Qg4!
      • threat
        • 2.Sc3#
      • 1...Kd4
        • 2.Qd1#
      • 1...Qxe4
        • 2.Qxe4#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Qd4
        • 2.Qg8#
      • 1...Sbd4
        • 2.Rxe5#
      • 1...Sfd4
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(d);SBLOCK::R1(G),XP(f)
    • S(g);SBLOCK::R1(A)
  • Actual
    • Q(E);
    • Threat
      • B(B)+S(C),DCHECK
    • Vars
      • K(e);P-FLIGHT::QAR(E)
      • Q(b);OGATE,P_SPINQ(b),XS(C)::QAB1(E),XQ(b)
      • S(d);::B(B)+S(C),DCHECK,XS(d)
      • Q(b);SBLOCK::QAB(E)
      • S(d);SBLOCK::R1(G),XP(f)
      • S(g);SBLOCK::R1(A)
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