MESON Chess Problem Database

Problem Display
PID: 139597 (7b/5K2/4B3/1ppp4/2kBRQ2/2r5/Ppq1NN2/2R4b w - - 0 1)

Pape, Edouard

Good Companions (March), 1923

7b/5K2/4B3/1ppp4/2kBRQ2/2r5/Ppq1NN2/2R4b

#2

9 + 9

3391 Het Half Pin Thema 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Be5#
      • 2.Bf6#
      • 2.Bg7#
      • 2.Bxh8#
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qxc5#
      • 1...Rf3+
        • 2.Bf6#
      • 1...Kb4
        • 2.Bxc5#
      • 1...Bxd4
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(G);N_PINP(h),P_PINP(g)
    • Threat
      • QAR1(G),XP(g)
    • Vars
      • R(d);CHECK,P_SPINQ(c),S_CUTB(a)::R(F)+B(E)
      • K(e);N_SPINP(g),P-FLIGHT::R(F)+B(E),DCHECK,XP(g)
      • B(i);OGATE,P_SPINB(i),XB(E)::R1(F),XB(i)
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