MESON Chess Problem Database

Problem Display
PID: 2251 (n1B5/1r6/2kP4/Q1P4p/N3R2K/2N5/8/8 w - - 0 1)

Cook, Eugene Beauharnais

Source?, 0000

n1B5/1r6/2kP4/Q1P4p/N3R2K/2N5/8/8

#2

8 + 4

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Qxb5#
    • 1...Ra7
      • 2.Qb5#
    • 1...Rc7
      • 2.Qb5#
    • 1...Rd7
      • 2.Qb5#
    • 1...Re7
      • 2.Qb5#
    • 1...Rf7
      • 2.Qb5#
    • 1...Rg7
      • 2.Qb5#
    • 1...Rh7
      • 2.Qb5#
    • 1...Sb6
      • 2.Qb5#
  • Tries
    • 1.Sb6?
      • threat
        • 2.Qb5#
      • 1...Sc7
        • 2.Bd7#
      • 1...Rxb6!
    • 1.Bxb7+?
      • 1...Kd7
        • 2.Re7#
      • 1...Kxb7!
    • 1.Bd7+?
      • 1...Rxd7
        • 2.Qb5#
      • 1...Kxd7!
    • 1.Qa6+?
      • 1...Sb6
        • 2.Qb5#
        • 2.Qxb7#
      • 1...Rb6!
  • Keys
    • 1.Sd5!
      • 1...Kxd5
        • 2.Bxb7#
      • 1...Rb1
        • 2.Se7#
      • 1...Rb2
        • 2.Se7#
      • 1...Rb3
        • 2.Se7#
      • 1...Rb4
        • 2.Sxb4#
        • 2.Se7#
      • 1...Rb5
        • 2.Se7#
      • 1...Rb6
        • 2.Se7#
      • 1...Ra7
        • 2.Sb4#
      • 1...Rc7
        • 2.Sb4#
      • 1...Rd7
        • 2.Sb4#
      • 1...Re7
        • 2.Sb4#
        • 2.Sxe7#
      • 1...Rf7
        • 2.Sb4#
      • 1...Rg7
        • 2.Sb4#
      • 1...Rh7
        • 2.Sb4#
      • 1...Rb8
        • 2.Se7#
      • 1...Sb6
        • 2.Sb4#
      • 1...Sc7
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 8
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • R(c);N_GUARD::QAB1(E),XR(c)
    • R(c);N_GUARD::QAB1(E)
    • S(d);S_CUTR(c)::QAB1(E)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB1(E)
      • Vars
        • S(d);S_CUTR(c)::B(H)
      • Refutation
        • R(c);XS(B)
    • Try
      • B(H);CHECK,XR(c)
      • Vars
        • K(b);S_FLIGHT::R1(C)
      • Refutation
        • K(b);S_FLIGHT,XB(H)
    • Try
      • B(H);CHECK
      • Vars
        • R(c);SBLOCK,XB(H)::QAB1(E)
      • Refutation
        • K(b);S_FLIGHT,XB(H)
    • Try
      • Q(E);CHECK
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • S(A);
    • Vars
      • K(b);S_FLIGHT,XS(A)::B(H),XR(c)
      • R(c);N_GUARD::S(A)
      • S(d);S_CUTR(c)::S(A)
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