MESON Chess Problem Database

Problem Display
PID: 121492 (6nk/r7/8/4RR2/8/8/1B4K1/8 w - - 0 1)

Klemensiewicz, Josef

Wiener Schachzeitung, 1923

6nk/r7/8/4RR2/8/8/1B4K1/8

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Keys
    • 1.Rf7!
      • threat
        • 2.Rh5#
        • 2.Re8#
      • 1...Rxf7
        • 2.Rh5#
      • 1...Sf6
        • 2.Re8#
      • 1...Sh6
        • 2.Rg5#
        • 2.Re8#
      • 1...Se7
        • 2.Rg5#
      • 1...Ra2
        • 2.Rh5#
      • 1...Ra3
        • 2.Rh5#
      • 1...Ra4
        • 2.Rh5#
      • 1...Ra5
        • 2.Rh5#
      • 1...Ra6
        • 2.Rh5#
      • 1...Rb7
        • 2.Rh5#
      • 1...Rc7
        • 2.Rh5#
      • 1...Rd7
        • 2.Rh5#
      • 1...Re7
        • 2.Rh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(D);
    • Threat
      • DUALS(2)
    • Vars
      • R(a);XR(D)::B(A)+R(C),DCHECK
      • S(b);::R(C)
      • S(b);N_GUARD::B(A)+R(C)
      • R(a);P_PINB(A)::B(A)+R(C),DCHECK
      • R(a);::B(A)+R(C),DCHECK
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