MESON Chess Problem Database

Problem Display
PID: 35501 (2Q5/K1Bp1r2/5p1n/8/6np/R4B1k/4P1Np/4Nb1R w - - 0 1)

Mari, Alberto

Comm., Il Due Mosse, 1953

2Q5/K1Bp1r2/5p1n/8/6np/R4B1k/4P1Np/4Nb1R

#2

9 + 9

3105 FIDE Album (1945-1955) 1964

SOLUTION

  • SOUND
  • Sets
    • 1...Bxg2
      • 2.Bxg2#
    • 1...Sf2
      • 2.Rxh2#
    • 1...Se3
      • 2.Rxh2#
    • 1...d5
      • 2.Be4#
      • 2.Bxg4#
      • 2.Bxd5#
      • 2.Rxh2#
    • 1...d6
      • 2.Be4#
      • 2.Bxg4#
      • 2.Bd5#
      • 2.Bc6#
      • 2.Bb7#
      • 2.Ba8#
  • Keys
    • 1.Bxh2!
      • threat
        • 2.Sf4#
      • 1...d5+
        • 2.Bc7#
      • 1...d6+
        • 2.Bb7#
      • 1...Bxg2
        • 2.Bxg2#
      • 1...Sxh2
        • 2.Bh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(a);OGATE,XS(D)::R(E)+B(F),DCHECK,XB(a)
    • S(d);N_GUARD::R1(B),XP(b)
  • Actual
    • B(H);XP(b)
    • Threat
      • S(D)
    • Vars
      • P(h);CHECK,P_SPINS(d)::R(B)+B(H)
      • P(h);CHECK,P_SPINS(d)::R(E)+B(F)
      • B(a);OGATE,XS(D)::R(E)+B(F),DCHECK,XB(a)
      • S(d);OGATE,P_SPINP(h),P_SPINS(d),XB(H)::R(E)+B(F)
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