MESON Chess Problem Database

Problem Display
PID: 4875 (8/3N4/3K4/2R5/8/3kp3/bQ6/8 w - - 0 1)

Ohquist, Johannes

Shakhmatny Zhurnal, 1892

8/3N4/3K4/2R5/8/3kp3/bQ6/8

#2

4 + 3

3757 Schachminiaturen I 1902

SOLUTION

  • SOUND
  • Tries
    • 1.Ke5?
      • threat
        • 2.Rc3#
        • 2.Qc2#
      • 1...e2
        • 2.Rc3#
        • 2.Qc3#
        • 2.Qd4#
      • 1...Bb1
        • 2.Rc3#
      • 1...Bb3
        • 2.Rc3#
      • 1...Bc4!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Se5#
        • 2.Rd4#
        • 2.Qc2#
      • 1...Kxc4
        • 2.Se5#
      • 1...Bxc4
        • 2.Sc5#
      • 1...e2
        • 2.Qc3#
        • 2.Qd4#
      • 1...Bb1
        • 2.Se5#
        • 2.Rd4#
      • 1...Bb3
        • 2.Se5#
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::R1(B)
      • Refutation
        • B(a);
  • Actual
    • R(B);
    • Threat
      • DUALS(3)
    • Vars
      • K(b);S_FLIGHT,XR(B)::S(D)
      • B(a);SBLOCK,XR(B)::S(D)
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