MESON Chess Problem Database

Problem Display
PID: 107926 (8/8/3np3/4R3/1B1kp1N1/4NpP1/3p4/3K4 w - - 0 1)

Cooper, RF

Ottawa Citizen, 1934

8/8/3np3/4R3/1B1kp1N1/4NpP1/3p4/3K4

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kxd2?
      • threat
        • 2.Bc3#
        • 2.Bc5#
      • 1...Sb5
        • 2.Bc5#
      • 1...Sb7
        • 2.Bc3#
      • 1...Sc4+!
  • Keys
    • 1.Sf2!
      • 1...Kxe3
        • 2.Bc5#
      • 1...Kxe5
        • 2.Bc3#
      • 1...Sc4
        • 2.Rxe4#
      • 1...Sb5
        • 2.Rxe4#
      • 1...Sf5
        • 2.Rxe4#
      • 1...Sb7
        • 2.Rxe4#
      • 1...Sf7
        • 2.Rxe4#
      • 1...Sc8
        • 2.Rxe4#
      • 1...Se8
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT,XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • S(e);::B(D)
      • Refutation
        • S(e);CHECK
  • Actual
    • S(E);
    • Vars
      • K(c);P_SPINP(d),S_FLIGHT,XS(B)::B(D)
      • K(c);S_FLIGHT,XR(F)::B(D)
      • S(e);N_GUARD::R1(F),XP(d)
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