MESON Chess Problem Database

Problem Display
PID: 43886 (BbN1R3/4r2p/2npb3/5R1Q/4kPp1/4Pp2/3K4/8 w - - 0 1)

Zilahi, Zoltan

De Problemist, 1930

BbN1R3/4r2p/2npb3/5R1Q/4kPp1/4Pp2/3K4/8

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Ra7
      • 2.Rxe6#
    • 1...Rc7
      • 2.Sxd6#
      • 2.Rxe6#
    • 1...Rd7
      • 2.Rxe6#
    • 1...Rf7
      • 2.Rxe6#
    • 1...Rg7
      • 2.Rxe6#
    • 1...Ba7
      • 2.Sxd6#
  • Tries
    • 1.Bxc6+?
      • 1...Bd5
        • 2.Bxd5#
        • 2.Rxe7#
      • 1...d5!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Rd4#
      • 1...Bxd5
        • 2.Qxh7#
      • 1...f2
        • 2.Qh1#
      • 1...Rb7
        • 2.Qf5#
      • 1...Ba7
        • 2.Sxd6#
      • 1...Sd4
        • 2.Rxd4#
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(g);OGATE,P_SPINB(f)::R(H),XB(f)
    • B(i);N_GUARD::S(G),XP(e)
  • Tries
    • Try
      • B(F);CHECK,XS(d)
      • Refutation
        • P(e);P_SPINP(e)
  • Actual
    • R(D);N_PINS(d)
    • Threat
      • R1(D)
    • Vars
      • B(f);N_GUARD,P_SPINR(g),SBLOCK,XR(D)::QAB(E),XP(h)
      • P(a);OGATEB::QAB(E)
      • R(g);P_SPINB(f)::QAB1(E)
      • B(i);N_GUARD::S(G),XP(e)
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