MESON Chess Problem Database

Problem Display
PID: 37734 (1K1k4/N1np4/pn3N1p/1Qp1R3/8/8/1rPB3b/3R4 w - - 0 1)

Marandiuk, Mikhail Nazarovich

3rd HM., Shakhmaty, 1976

1K1k4/N1np4/pn3N1p/1Qp1R3/8/8/1rPB3b/3R4

#2

8 + 9

3771 FIDE Album (1974-1976) 1980

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Sc6#
    • 1...d6
      • 2.Sc6#
  • Tries
    • 1.Bb4?
      • threat
        • 2.Sc6#
      • 1...Sbd5
        • 2.Qxd7#
      • 1...Scd5!
    • 1.Bf4?
      • threat
        • 2.Sc6#
      • 1...Scd5
        • 2.Re8#
      • 1...Sbd5!
  • Keys
    • 1.Ba5!
      • threat
        • 2.Sc6#
      • 1...Sbd5
        • 2.Re8#
      • 1...Scd5
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • P(h);N_GUARD::S(G)
  • Tries
    • Try
      • B(C);P_PINP(h)
      • Threat
        • S(G)
      • Vars
        • S(e);N_GUARD,N_SPINP(h)::QAR1(D),XP(h)
      • Refutation
        • S(g);N_SPINP(h),P_PINR(E)
    • Try
      • B(C);P_PINP(h)
      • Threat
        • S(G)
      • Vars
        • S(g);N_GUARD,N_SPINP(h)::R1(E)
      • Refutation
        • S(e);N_SPINP(h),P_PINQ(D)
  • Actual
    • B(C);P_PINP(h)
    • Threat
      • S(G)
    • Vars
      • S(e);N_SPINP(h),P_PINQ(D),P_SPINS(g)::R1(E)
      • S(g);N_SPINP(h),P_PINR(E),P_SPINS(e)::QAR1(D),XP(h)
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