MESON Chess Problem Database

Problem Display
PID: 89822 (8/8/7n/2N1B3/6k1/5N2/8/4K2R w - - 0 1)

Gruber, Hans

Die Schwalbe, 1980

8/8/7n/2N1B3/6k1/5N2/8/4K2R

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Keys
    • 1.Rg1+!
      • 1...Kxf3
        • 2.Rg3#
      • 1...Kh3
        • 2.Rg3#
      • 1...Kf5
        • 2.Rg5#
      • 1...Kh5
        • 2.Rg5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(B);CHECK
    • Vars
      • K(a);S_FLIGHT,XS(C)::R1(B)
      • K(a);S_FLIGHT::R1(B)
      • K(a);OGATE,S_FLIGHT::R1(B)
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