MESON Chess Problem Database

Problem Display
PID: 2206 (3B4/8/2p1PNP1/2K1pkp1/8/5P2/6Q1/8 w - - 0 1)

Cook, Eugene Beauharnais

Source?, 0000

3B4/8/2p1PNP1/2K1pkp1/8/5P2/6Q1/8

#2

7 + 4

1679 American Chess Nuts 1868
14907 Good Companion Chess Problem Club 1915

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Qg4#
    • 1...g4
      • 2.Qxg4#
  • Tries
    • 1.Qh3+?
      • 1...Kxg6
        • 2.Qh7#
      • 1...g4
        • 2.Qxg4#
      • 1...Kf4!
    • 1.Qxg5+?
      • 1...Kxe6
        • 2.Qg4#
      • 1...Kxg5!
  • Keys
    • 1.f4!
      • 1...Kxf4
        • 2.Qf2#
      • 1...Kxe6
        • 2.Qg4#
      • 1...Kxg6
        • 2.Qxg5#
      • 1...exf4
        • 2.Qe4#
      • 1...gxf4
        • 2.Qg4#
      • 1...e4
        • 2.Qxe4#
      • 1...g4
        • 2.Qxg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT,XP(D)::QAB(A)
    • P(c);::QAB1(A),XP(c)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(A)
        • P(c);P_SPINP(c)::QAB1(A),XP(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK,XP(c)
      • Vars
        • K(b);S_FLIGHT,XP(D)::QAB(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
  • Actual
    • P(B);
    • Vars
      • K(b);OGATEB,P-FLIGHT,XP(B)::QAR2(A)
      • K(b);S_FLIGHT,XP(D)::QAB(A)
      • K(b);P_SPINP(c),S_FLIGHT,XP(F)::QAR1(A),XP(c)
      • P(a);XP(B)::QAB1(A)
      • P(c);XP(B)::QAB1(A)
      • P(a);::QAB1(A),XP(a)
      • P(c);::QAB1(A),XP(c)
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