MESON Chess Problem Database

Problem Display
PID: 109890 (8/5N1n/5P2/2Q4p/R2K2bk/2BP1B1p/3P3P/5N1n w - - 0 1)

Campos, S (Junior)

Caissa, 1981

8/5N1n/5P2/2Q4p/R2K2bk/2BP1B1p/3P3P/5N1n

#2

11 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Qxh5#
    • 1...Bd7
      • 2.Qxh5#
    • 1...Bc8
      • 2.Qxh5#
    • 1...Sg3
      • 2.hxg3#
    • 1...Sg5
      • 2.Qxg5#
    • 1...Sxf6
      • 2.Qg5#
    • 1...Sf8
      • 2.Qg5#
  • Tries
    • 1.Ke3?
      • 1...Sxf6
        • 2.Bxf6#
        • 2.Qg5#
      • 1...Sg3
        • 2.hxg3#
      • 1...Sg5
        • 2.Qxg5#
      • 1...Sf8
        • 2.Qg5#
      • 1...Sf2!
  • Keys
    • 1.Ke4!
      • 1...Bxf3+
        • 2.Kxf3#
      • 1...Bf5+
        • 2.Kxf5#
      • 1...Sf2+
        • 2.Qxf2#
      • 1...Sg3+
        • 2.hxg3#
      • 1...Sg5+
        • 2.Qxg5#
      • 1...Sxf6+
        • 2.Bxf6#
      • 1...Be6
        • 2.Qxh5#
      • 1...Bd7
        • 2.Qxh5#
      • 1...Bc8
        • 2.Qxh5#
      • 1...Sf8
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD::QAR1(I),XP(e)
    • S(a);OGATE::P(C),XS(a)
    • S(f);N_GUARD::QAB1(I),XS(f)
    • S(f);N_GUARD,XP(J)::QAB1(I)
    • S(f);N_GUARD::QAB1(I)
  • Tries
    • Try
      • K(H);P_PINB(c),S_FLIGHT
      • Vars
        • S(a);OGATE::P(C),XS(a)
        • S(f);N_GUARD::QAB1(I),XS(f)
        • S(f);N_GUARD::QAB1(I)
      • Refutation
        • S(a);
  • Actual
    • K(H);P-FLIGHT
    • Vars
      • B(c);CHECK,XB(F)::R(G)+K(H),XB(c)
      • B(c);CHECK::R(G)+K(H),XB(c)
      • S(a);CHECK,N_GUARD::QAB(I),XS(a)
      • S(a);CHECK,OGATE::P(C),XS(a)
      • S(f);CHECK,N_GUARD::QAB1(I),XS(f)
      • S(f);CHECK,OGATE,XP(J)::B(D),XS(f)
      • B(c);N_GUARD::QAR1(I),XP(e)
      • S(f);N_GUARD::QAB1(I)
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