MESON Chess Problem Database

Problem Display
PID: 80720 (2N1R3/4N3/KB3p1r/1P2b2R/2k1p3/2P5/2BP4/8 w - - 0 1)

Volta, Ettore

Liberte-Dimanche, 1968

2N1R3/4N3/KB3p1r/1P2b2R/2k1p3/2P5/2BP4/8

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Rc5#
    • 1...Bg3
      • 2.Rc5#
    • 1...Bd4
      • 2.Sd6#
    • 1...Bf4
      • 2.Rc5#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Bc7
      • 2.Rc5#
    • 1...Bb8
      • 2.Rc5#
  • Tries
    • 1.Bd4?
      • threat
        • 2.Sb6#
      • 1...Bxd4
        • 2.Sd6#
      • 1...Bc7
        • 2.Rc5#
      • 1...f5+!
    • 1.Rxe5?
      • threat
        • 2.Sd6#
        • 2.Rxe4#
        • 2.Rc5#
      • 1...Rh4
        • 2.Sd6#
        • 2.Rc5#
      • 1...Rh5
        • 2.Sd6#
        • 2.Rxe4#
      • 1...e3
        • 2.Sd6#
        • 2.Re4#
        • 2.Rc5#
      • 1...f5
        • 2.Rc5#
      • 1...fxe5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Se3#
      • 1...Kxd5
        • 2.Bb3#
      • 1...Bxc3
        • 2.Sd6#
      • 1...Bd4
        • 2.Sd6#
      • 1...Bf4
        • 2.Rxe4#
      • 1...e3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(c);OGATE::R1(E)
    • B(c);N_GUARD::S(I)
    • B(c);N_GUARD::S(I),XB(c)
  • Tries
    • Try
      • B(G);
      • Threat
        • S(I)
      • Vars
        • B(c);N_GUARD,XB(G)::S(I)
        • B(c);OGATE::R1(E)
      • Refutation
        • P(d);CHECK
    • Try
      • R(E);XB(c)
      • Threat
        • DUALS(3)
      • Vars
        • P(d);P_PINB(G)::R1(E)
      • Refutation
        • P(d);P_PINB(G),XR(E)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • K(a);P_SPINB(c),S_FLIGHT,XS(H)::B(A)
      • B(c);N_GUARD,XP(C)::S(I)
      • B(c);N_GUARD::S(I)
      • B(c);OGATE::R(J),XP(b)
      • P(b);::S(H),XP(b)
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