MESON Chess Problem Database

Problem Display
PID: 6901 (1B2K3/8/N1pPkpp1/R7/2P1r1Np/1B5Q/5b2/5R1b w - - 0 1)

Loshinski, Lev Ilich

HM., Shakhmaty v SSSR, 1934

1B2K3/8/N1pPkpp1/R7/2P1r1Np/1B5Q/5b2/5R1b

#2

10 + 8

56 The Problemist 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Sc5#
      • 2.Rxf6#
    • 1...Bg1
      • 2.Rxf6#
    • 1...Be3
      • 2.Rxf6#
    • 1...Bg3
      • 2.Sc5#
      • 2.Rxf6#
    • 1...Bd4
      • 2.c5#
    • 1...Bc5
      • 2.Sxc5#
      • 2.Rxf6#
    • 1...Bb6
      • 2.Rxf6#
    • 1...Ba7
      • 2.Rxf6#
  • Tries
    • 1.Sc5+?
      • 1...Bxc5
        • 2.Rxf6#
      • 1...Kf5+!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Sc7#
      • 1...c5
        • 2.Qd5#
      • 1...Rd4
        • 2.Sc5#
      • 1...Bd4
        • 2.c5#
      • 1...Bb6
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(b);OGATE::R1(A),XP(g)
    • B(b);S_CUTR(c)::B(B)+P(D)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • B(b);OGATE,XS(G)::R1(A),XP(g)
      • Refutation
        • K(f);CHECK,P_SPINB(b),S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • S(G)
    • Vars
      • P(e);N_GUARD::QAB1(C)
      • R(c);S_CUTB(b)::S(G)
      • B(b);S_CUTR(c)::B(B)+P(D)
      • B(b);OGATE::R1(A),XP(g)
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