MESON Chess Problem Database

Problem Display
PID: 123415 (8/4pK2/1P1BP3/N2k2N1/R1p1p2R/3p4/3P4/3Q3B w - - 0 1)

Krzeli, Ratislav

Canadian Chess Chat, 1980

8/4pK2/1P1BP3/N2k2N1/R1p1p2R/3p4/3P4/3Q3B

#2

11 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kxe7?
      • 1...c3
        • 2.Bxe4#
        • 2.Qb3#
      • 1...Kd4!
    • 1.Sxe4?
      • 1...Kd4
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sg5#
        • 2.Sf6#
      • 1...c3
        • 2.Rh5#
        • 2.Qb3#
        • 2.Qh5#
      • 1...exd6!
    • 1.Bxe4+?
      • 1...Kd4
        • 2.Sb3#
        • 2.Sc6#
        • 2.Sf3#
        • 2.Bh1#
        • 2.Bg2#
        • 2.Bf3#
        • 2.Bc6#
        • 2.Bb7#
        • 2.Ba8#
        • 2.Rxc4#
        • 2.Qa1#
        • 2.Qg1#
      • 1...Kxd6!
    • 1.Rh5?
      • 1...Kxd6
        • 2.Sxe4#
      • 1...exd6
        • 2.Sf3#
      • 1...c3
        • 2.Sxe4#
      • 1...Kd4!
    • 1.Qg1?
      • threat
        • 2.Qc5#
      • 1...Kxd6
        • 2.Qd4#
      • 1...exd6!
  • Keys
    • 1.Qh5!
      • 1...Kd4
        • 2.Sf3#
      • 1...Kxd6
        • 2.Sxe4#
      • 1...exd6
        • 2.Sf3#
      • 1...c3
        • 2.Sxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(K);P-FLIGHT,XP(e)
      • Refutation
        • K(d);N_SPINP(c),P-FLIGHT,P_SPINP(b)
    • Try
      • S(G);XP(c)
      • Refutation
        • P(e);XB(I)
    • Try
      • B(B);CHECK,XP(c)
      • Refutation
        • K(d);P-FLIGHT,XB(I)
    • Try
      • R(E);
      • Vars
        • K(d);N_SPINP(c),P-FLIGHT,XB(I)::S(G),XP(c)
        • P(e);SBLOCK,XB(I)::R(E)+S(G)
        • P(b);::R(E)+S(G),XP(c)
      • Refutation
        • K(d);N_SPINP(c),P-FLIGHT,P_SPINP(b)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(d);N_SPINP(c),P-FLIGHT,XB(I)::QAR2(A)
      • Refutation
        • P(e);XB(I)
  • Actual
    • Q(A);
    • Vars
      • K(d);N_SPINP(c),P-FLIGHT,P_SPINP(b)::S(G)
      • K(d);N_SPINP(c),P-FLIGHT,XB(I)::S(G),XP(c)
      • P(e);SBLOCK,XB(I)::QAR(A)+S(G)
      • P(b);::QAR(A)+S(G),XP(c)
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