MESON Chess Problem Database

Problem Display
PID: 178714 (2N5/3p1p2/3P1Pp1/3k2K1/Pp1P4/1N1B1p2/2PP1P2/8 w - - 0 1)

Armeni, Alberto

Sp. HM., Problem Observer Block-Threat Ty., 2009-2010

2N5/3p1p2/3P1Pp1/3k2K1/Pp1P4/1N1B1p2/2PP1P2/8

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Be4#
    • 1...Ke6
      • 2.Bc4#
  • Tries
    • 1.Be4+?
      • 1...Kc4
        • 2.Sb6#
      • 1...Ke6
        • 2.Sc5#
      • 1...Kxe4!
    • 1.Bb5?
      • 1...Ke6
        • 2.Bc4#
      • 1...Ke4!
    • 1.Bf5?
      • 1...Kc4
        • 2.Sb6#
      • 1...Kc6
        • 2.Be4#
      • 1...gxf5!
    • 1.Ba6?
      • 1...Ke4
        • 2.Bb7#
      • 1...Ke6
        • 2.Bc4#
      • 1...Kc6!
    • 1.c3?
      • 1...Kc6
        • 2.Be4#
      • 1...Ke6
        • 2.Bc4#
      • 1...bxc3!
    • 1.c4+?
      • 1...Kc6
        • 2.Sa5#
        • 2.Be4#
      • 1...Ke6
        • 2.Sc5#
      • 1...bxc4 ep!
    • 1.a5?
      • 1...Ke6
        • 2.Bc4#
      • 1...Kc6!
  • Keys
    • 1.Bc4+!
      • 1...Kxc4
        • 2.Sb6#
      • 1...Ke4
        • 2.d3#
      • 1...Kc6
        • 2.Sa5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(c);S_FLIGHT::B(E)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(c);S_FLIGHT::S(K)
        • K(c);S_FLIGHT::S(D)
      • Refutation
        • K(c);S_FLIGHT,XB(E)
    • Try
      • B(E);
      • Vars
        • K(c);S_FLIGHT::B(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(c);S_FLIGHT::S(K)
        • K(c);S_FLIGHT::B(E)
      • Refutation
        • P(d);XB(E)
    • Try
      • B(E);
      • Vars
        • K(c);S_FLIGHT::B(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(A);
      • Vars
        • K(c);S_FLIGHT::B(E)
      • Refutation
        • P(b);XP(A)
    • Try
      • P(A);CHECK
      • Vars
        • K(c);S_FLIGHT::S(D)
      • Refutation
        • P(b);EP,XP(A)
    • Try
      • P(F);
      • Vars
        • K(c);S_FLIGHT::B(E)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • B(E);CHECK
    • Vars
      • K(c);S_FLIGHT,XB(E)::S(K)
      • K(c);S_FLIGHT::P(B)
      • K(c);S_FLIGHT::S(D)
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