MESON Chess Problem Database

Problem Display
PID: 110051 (3Q4/3B4/1N2rp2/3RpN2/4krpP/5pP1/3B1p2/5K1n w - - 0 1)

Campo, Achille

Fanfulla da Lodi, 1886-1888

3Q4/3B4/1N2rp2/3RpN2/4krpP/5pP1/3B1p2/5K1n

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Sxd6#
    • 1...Re7
      • 2.Sd6#
    • 1...Re8
      • 2.Sd6#
    • 1...Sxg3+
      • 2.Sxg3#
  • Tries
    • 1.Bb5?
      • threat
        • 2.Bd3#
      • 1...Sxg3+
        • 2.Sxg3#
      • 1...Kxf5!
    • 1.Bxe6?
      • threat
        • 2.Sd6#
      • 1...Sxg3+
        • 2.Sxg3#
      • 1...Rxf5!
  • Keys
    • 1.Qe7!
      • 1...Sxg3+
        • 2.Sxg3#
      • 1...Kxf5
        • 2.Qh7#
      • 1...Rxf5
        • 2.Qb4#
      • 1...Rxb6
        • 2.Rd4#
      • 1...Rxe7
        • 2.Sd6#
      • 1...Rc6
        • 2.Rd4#
      • 1...Rd6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(h);N_GUARD::S(F),XR(h)
    • R(h);N_GUARD::S(F)
    • S(a);CHECK,XP(C)::S(F),XS(a)
  • Tries
    • Try
      • B(H);
      • Threat
        • B(H)
      • Vars
        • S(a);CHECK,XP(C)::S(F),XS(a)
      • Refutation
        • K(d);P_SPINP(g),S_FLIGHT,XS(F)
    • Try
      • B(H);XR(h)
      • Threat
        • S(F)
      • Vars
        • S(a);CHECK,XP(C)::S(F),XS(a)
      • Refutation
        • R(e);XS(F)
  • Actual
    • Q(I);
    • Vars
      • S(a);CHECK,XP(C)::S(F),XS(a)
      • K(d);OGATEB,P_SPINP(g),P_SPINR(h),S_FLIGHT,XS(F)::QAB(I)
      • R(e);SBLOCK,XS(F)::QAR(I)
      • R(h);P_SPINP(g),XS(G)::R1(E)
      • R(h);N_GUARD,XQ(I)::S(F)
      • R(h);P_SPINP(g)::R1(E)
      • R(h);N_GUARD,P_SPINP(g)::S(F),XR(h)
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