MESON Chess Problem Database

Problem Display
PID: 2229 (4Q3/8/6P1/B7/3p4/3pP3/4k1K1/1Rn5 w - - 0 1)

Cook, Eugene Beauharnais

Source?, 0000

4Q3/8/6P1/B7/3p4/3pP3/4k1K1/1Rn5

#2

6 + 4

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Re1#
      • 2.exd4#
    • 1...Sb3
      • 2.Re1#
      • 2.exd4#
  • Tries
    • 1.Rxc1?
      • threat
        • 2.Re1#
        • 2.exd4#
      • 1...dxe3
        • 2.Re1#
      • 1...d2!
    • 1.Qe4?
      • threat
        • 2.Qf3#
      • 1...Kd1
        • 2.Qxd3#
      • 1...d2!
  • Keys
    • 1.Qb5!
      • 1...Kd1
        • 2.Qxd3#
      • 1...Kxe3
        • 2.Qe5#
      • 1...dxe3
        • 2.Qh5#
      • 1...Sa2
        • 2.Re1#
      • 1...Sb3
        • 2.Re1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • P(d);P_SPINP(d),XP(C)::R1(A)
      • Refutation
        • P(c);
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • K(b);P_SPINS(a),S_FLIGHT::QAR2(F),XP(c)
      • Refutation
        • P(c);
  • Actual
    • Q(F);P_PINP(c)
    • Vars
      • K(b);N_SPINP(c),P_SPINS(a),S_FLIGHT::QAR2(F),XP(c)
      • K(b);N_SPINP(c),OGATEB,P-FLIGHT,XP(C)::QAR2(F)
      • P(d);SBLOCK,XP(C)::QAB(F)
      • S(a);OGATE::R1(A)
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