MESON Chess Problem Database

Problem Display
PID: 49279 (8/8/2P5/p3P3/pkN2p2/Nb2pQ2/3P4/K5B1 w - - 0 1)

Valle, Giovanni Batista

Huddersfield College Magazine, 1879

8/8/2P5/p3P3/pkN2p2/Nb2pQ2/3P4/K5B1

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...e2
      • 2.Qc3#
  • Tries
    • 1.Qd5?
      • threat
        • 2.Qxa5#
        • 2.Qb5#
        • 2.Qd6#
      • 1...exd2
        • 2.Qxd2#
        • 2.Qxa5#
      • 1...Bd1
        • 2.Qb5#
      • 1...Ba2
        • 2.Qb5#
      • 1...Bc2
        • 2.Qb5#
      • 1...Bxc4!
    • 1.Qxe3?
      • threat
        • 2.Qc5#
        • 2.Qb6#
        • 2.Qc3#
      • 1...Bxc4
        • 2.Qc3#
      • 1...Bd1
        • 2.Qb6#
        • 2.Qc3#
      • 1...Ba2
        • 2.Qb6#
        • 2.Qc3#
      • 1...Bc2
        • 2.Qb6#
        • 2.Qc3#
      • 1...fxe3!
  • Keys
    • 1.Sxe3!
      • 1...Kxa3
        • 2.Sc2#
      • 1...Kc5
        • 2.Sec2#
      • 1...fxe3
        • 2.Qf8#
      • 1...Bd1
        • 2.Sd5#
      • 1...Ba2
        • 2.Sec2#
      • 1...Bc2
        • 2.Sexc2#
        • 2.Sd5#
      • 1...Bc4
        • 2.Sec2#
      • 1...Bd5
        • 2.Sec2#
        • 2.Sxd5#
      • 1...Be6
        • 2.Sec2#
      • 1...Bf7
        • 2.Sec2#
      • 1...Bg8
        • 2.Sec2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 1
  • Sets
    • P(b);OGATE::QAB1(E)
  • Tries
    • Try
      • Q(E);
      • Threat
        • DUALS(3)
      • Vars
        • B(a);::QAR1(E)
      • Refutation
        • B(a);XS(F)
    • Try
      • Q(E);XP(b)
      • Threat
        • DUALS(3)
      • Vars
        • B(a);XS(F)::QAB1(E)
      • Refutation
        • P(e);XQ(E)
  • Actual
    • S(F);XP(b)
    • Vars
      • K(d);S_FLIGHT,XS(D)::S(F)
      • K(d);S_FLIGHT::B(B)+S(F)
      • P(e);OGATE,XS(F)::QAB(E)
      • B(a);N_GUARD::S(F)
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