MESON Chess Problem Database

Problem Display
PID: 55299 (4n3/K2Pp1P1/1R1pk3/3R4/pN2p3/7N/2Q1Prbp/B1q2nb1 w - - 0 1)

Andrade, Barry Jack da Costa

Watney, Charles Gold

Problemist Fairy Supplement, 1933

4n3/K2Pp1P1/1R1pk3/3R4/pN2p3/7N/2Q1Prbp/B1q2nb1

#2

10 + 12

56 The Problemist 2004

SOLUTION

  • SOUND
  • Keys
    • 1.dxe8Q!
      • threat
        • 2.Rbxd6#
      • 1...Rxe2
        • 2.g8Q#
        • 2.g8B#
      • 1...Qe3
        • 2.Qcc8#
      • 1...Qf4
        • 2.Qcc8#
      • 1...Rf3
        • 2.Qxe4#
      • 1...Rf4
        • 2.Sg5#
      • 1...Rf5
        • 2.Rxd6#
      • 1...Rf6
        • 2.Re5#
      • 1...Rf7
        • 2.Qec8#
      • 1...Rf8
        • 2.gxf8S#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Actual
    • P(I);XS(l)
    • Threat
      • R1(G),XP(i)
    • Vars
      • R(d);N_GUARD,P_PINR(G),XP(C)::P=Q
      • Q(a);N_GUARD,P_PINR(G)::QAB(B)
      • Q(a);N_GUARD::QAB(B)
      • R(d);P_PINR(G),S_CUTB(e)::QAR2(B),XP(h)
      • R(d);P_PINR(G),S_CUTQ(a)::S(D)
      • R(d);P_PINR(G),SBLOCK::R1(F),XP(i)
      • R(d);P_PINR(G),SBLOCK::R1(F)
      • R(d);P_PINR(G),SBLOCK::QAB(I)
      • R(d);OGATE,P_PINR(G)::PXR(d)=S
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