MESON Chess Problem Database

Problem Display
PID: 57160 (kn2bRR1/8/rPP1P3/p7/K1Np4/8/5BB1/8 w - - 0 1)

Meschick, AG

6th Comm., Brisbane Courier, 1917-1918

kn2bRR1/8/rPP1P3/p7/K1Np4/8/5BB1/8

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bh5
      • 2.Rxb8#
    • 1...Bxc6+
      • 2.Bxc6#
    • 1...Bg6
      • 2.Rxb8#
    • 1...Bd7
      • 2.Rxb8#
      • 2.cxd7#
    • 1...Bf7
      • 2.Rxb8#
      • 2.c7#
    • 1...Sd7
      • 2.c7#
    • 1...d3
      • 2.b7#
  • Tries
    • 1.Rxe8?
      • threat
        • 2.Rxb8#
        • 2.c7#
      • 1...Ra7
        • 2.Rxb8#
      • 1...Rxb6!
  • Keys
    • 1.Rf7!
      • 1...Bxc6+
        • 2.Bxc6#
      • 1...Rxb6
        • 2.Sxb6#
      • 1...Bxf7
        • 2.c7#
      • 1...Sxc6
        • 2.Rxe8#
      • 1...Sd7
        • 2.c7#
      • 1...Ra7
        • 2.Rxa7#
      • 1...Bd7
        • 2.cxd7#
      • 1...d3
        • 2.b7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • B(f);N_PINP(F),OGATE,P_SPINS(e)::R1(H),XS(e)
    • B(f);CHECK,OGATE,P_SPINB(f),P_SPINS(e),XP(F)::B(B),XB(f)
    • S(e);N_PINP(F),P_SPINB(f)::B(B)+P(F)
    • P(a);::P(E)
  • Tries
    • Try
      • R(H);N_SPINP(F),P_PINS(e),XB(f)
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::R1(H),XS(e)
      • Refutation
        • R(c);XP(E)
  • Actual
    • R(H);
    • Vars
      • B(f);CHECK,OGATE,P_SPINB(f),P_SPINS(e),XP(F)::B(B),XB(f)
      • R(c);XP(E)::S(D),XR(c)
      • B(f);N_PINP(F),P_SPINS(e),XR(H)::B(B)+P(F)
      • S(e);OGATEB,P_SPINB(f),P_SPINS(e),XP(F)::R(I),XB(f)
      • S(e);N_PINP(F),P_SPINB(f)::B(B)+P(F)
      • R(c);N_GUARD::R1(H),XR(c)
      • B(f);P_SPINS(e)::B(B)+P(F),XB(f)
      • P(a);::P(E)
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