MESON Chess Problem Database

Problem Display
PID: 145068 (4R3/2Q1N3/2PP1B2/1r2r2p/2p1k3/6P1/2N1K3/1B6 w - - 0 1)

Andrew, Frederick William

British Chess Magazine, 1935

4R3/2Q1N3/2PP1B2/1r2r2p/2p1k3/6P1/2N1K3/1B6

#2

10 + 5

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sb4#
    • 1...Rf5
      • 2.Sb4#
    • 1...Rg5
      • 2.Sb4#
    • 1...Re6
      • 2.Sb4#
    • 1...Rxe7
      • 2.Sb4#
  • Keys
    • 1.Sd5!
      • threat
        • 2.Rxe5#
      • 1...Kxd5+
        • 2.Rxe5#
      • 1...Kf5+
        • 2.Sce3#
      • 1...Rxd5
        • 2.Qh7#
      • 1...Rxe8
        • 2.Scb4#
      • 1...Re6
        • 2.Scb4#
      • 1...Re7
        • 2.Scb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(d);::B(A)+S(B)
    • R(d);P_SPINR(d),XS(I)::B(A)+S(B)
  • Actual
    • S(I);P_PINR(d)
    • Threat
      • R1(J),XR(d)
    • Vars
      • K(b);CHECK,N_SPINR(d),S_FLIGHT,XS(I)::R1(J),XR(d)
      • K(b);CHECK,N_SPINR(d),S_FLIGHT::B(A)+S(B),DCHECK
      • R(c);SBLOCK,XS(I)::QAB(H)
      • R(d);N_SPINR(d),XR(J)::B(A)+S(B)
      • R(d);::B(A)+S(B)
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