MESON Chess Problem Database

Problem Display
PID: 208769 (8/1RK1pP2/2n1P3/3p4/3k4/3N4/3Q4/8 w - - 0 1)

Cook, Eugene Beauharnais

Dubuque Chess Journal, 1876

8/1RK1pP2/2n1P3/3p4/3k4/3N4/3Q4/8

#2

6 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Rxb4#
    • 1...Sa7
      • 2.Rb4#
    • 1...Sb8
      • 2.Rb4#
    • 1...Sd8
      • 2.Rb4#
  • Tries
    • 1.Kxc6?
      • threat
        • 2.Rb4#
      • 1...Kc4
        • 2.Sb2#
        • 2.Se5#
        • 2.Rb4#
      • 1...Ke4!
    • 1.f8Q?
      • threat
        • 2.Qff4#
      • 1...Ke4
        • 2.Qff4#
      • 1...Kc4!
    • 1.f8R?
      • threat
        • 2.Rf4#
      • 1...Ke4
        • 2.Rf4#
      • 1...Kc4!
  • Keys
    • 1.Rb3!
      • threat
        • 2.Qf4#
      • 1...Kc4
        • 2.Qc3#
      • 1...Ke4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • S(c);N_GUARD::R(D),XS(c)
    • S(c);N_GUARD::R(D)
  • Tries
    • Try
      • K(E);P-FLIGHT,XS(c)
      • Threat
        • R(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(F);
      • Threat
        • QAR2(F)
      • Vars
        • K(a);P-FLIGHT::QAR1(F)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(F);
      • Threat
        • R(F)
      • Vars
        • K(a);P-FLIGHT::R1(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(D);
    • Threat
      • QAR2(A)
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
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