MESON Chess Problem Database

Problem Display
PID: 102366 (R5K1/1p2k3/1Nbp1p2/3ppPp1/8/3N2Q1/8/4r3 w - - 0 1)

Bakcsi, Gyorgy

Europe Echecs, 1988

R5K1/1p2k3/1Nbp1p2/3ppPp1/8/3N2Q1/8/4r3

#2

6 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd7
      • 2.Sxd5#
  • Tries
    • 1.Sxe5?
      • threat
        • 2.Sg6#
      • 1...dxe5
        • 2.Qa3#
      • 1...fxe5
        • 2.Qxg5#
      • 1...Be8
        • 2.Sxd5#
      • 1...Rxe5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sg6#
      • 1...exf4
        • 2.Qxe1#
      • 1...gxf4
        • 2.Qg7#
      • 1...Be8
        • 2.Sfxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(e);N_GUARD,SBLOCK::S(D),XP(b)
  • Tries
    • Try
      • S(A);XP(c)
      • Threat
        • S(A)
      • Vars
        • P(f);OGATEB,XS(A)::QAB(B)
        • P(g);OGATEB,XS(A)::QAB(B),XP(d)
        • B(e);N_GUARD::S(D),XP(b)
      • Refutation
        • R(a);XS(A)
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • P(c);OGATEB,XS(A)::QAR(B),XR(a)
      • P(d);OGATE,XS(A)::QAR2(B)
      • B(e);N_GUARD::S(A),XP(b)
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