MESON Chess Problem Database

Problem Display
PID: 132204 (3b3Q/B2R4/3p1n2/p1r5/1NnkpK2/p2P4/1pB5/1N1R4 w - - 0 1)

Casa, Alex

L'Echiquier de Paris, 1952

3b3Q/B2R4/3p1n2/p1r5/1NnkpK2/p2P4/1pB5/1N1R4

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Rxd6#
    • 1...exd3
      • 2.Rxd3#
    • 1...d5
      • 2.Sc6#
      • 2.Rxd5#
  • Tries
    • 1.Qxf6+?
      • 1...Se5
        • 2.Rxd6#
        • 2.Qxe5#
        • 2.Qxd6#
      • 1...Bxf6!
  • Keys
    • 1.Bb3!
      • threat
        • 2.dxc4#
      • 1...exd3
        • 2.Rxd3#
      • 1...Sd2
        • 2.Rxd6#
      • 1...Se3
        • 2.Sc6#
      • 1...Se5
        • 2.Sc2#
      • 1...Sb6
        • 2.dxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::R(H),XP(h)
    • P(e);N_SPINP(h),OGATE,P_SPINP(e),XP(D)::R1(B),XP(e)
  • Tries
    • Try
      • Q(I);CHECK,XS(i)
      • Refutation
        • B(j);XQ(I)
  • Actual
    • B(C);
    • Threat
      • R(B)+P(D),XS(c)
    • Vars
      • P(e);N_SPINP(h),OGATE,P_SPINP(e),XP(D)::R1(B),XP(e)
      • S(c);N_GUARD::R(H),XP(h)
      • S(c);::S(E)
      • S(c);N_SPINS(i)::S(E)
      • S(c);N_GUARD,N_SPINR(g)::R(B)+P(D),XP(e)
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