MESON Chess Problem Database

Problem Display
PID: 227402 (4B3/1N6/4kP2/1P4K1/2q2P2/1QN2P2/8/B4b2 w - - 0 1)

Caine, Walter Edmund

Sunday Chronicle, 1947

(First published on Sun Mar 2 1947)

4B3/1N6/4kP2/1P4K1/2q2P2/1QN2P2/8/B4b2

#2

10 + 3

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5+
      • 2.Qxd5#
    • 1...Bg2
      • 2.Qxc4#
    • 1...Bh3
      • 2.Qxc4#
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sc7#
      • 1...Qxd5+
        • 2.f5#
      • 1...Qxf4+
        • 2.Sxf4#
      • 1...Kxd5
        • 2.Bf7#
      • 1...Qxb5
        • 2.f5#
      • 1...Qc5
        • 2.f5#
      • 1...Qc7
        • 2.Sxc7#
        • 2.f5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • Q(b);CHECK,OGATE::QAB1(B),XQ(b)
    • B(a);N_GUARD::QAB(B),XQ(b)
  • Actual
    • S(C);N_PINQ(b)
    • Threat
      • S(C)
    • Vars
      • Q(b);CHECK,P_SPINQ(b),XS(C)::P(E)
      • Q(b);CHECK,XP(E)::QAB(B)+S(C),DCHECK,XQ(b)
      • K(c);P_SPINQ(b),S_FLIGHT,XS(C)::B(J)
      • Q(b);P_PINS(C),XP(F)::P(E)
      • Q(b);P_PINS(C)::P(E)
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