MESON Chess Problem Database

Problem Display
PID: 50778 (5R2/5n2/8/8/7B/3p2NP/3P2k1/4K1NR w K - 0 1)

Gruber, Bratoljub

Mat Plus, 1995

5R2/5n2/8/8/7B/3p2NP/3P2k1/4K1NR

#2

8 + 3

5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Se5
      • 2.Rf2#
    • 1...Sg5
      • 2.Rf2#
    • 1...Sd6
      • 2.Rf2#
    • 1...Sh6
      • 2.Rf2#
    • 1...Sd8
      • 2.Rf2#
    • 1...Sh8
      • 2.Rf2#
  • Tries
    • 1.S1e2?
      • 1...Kf3
        • 2.0-0#
      • 1...Se5
        • 2.Rf2#
      • 1...Sg5
        • 2.Rf2#
      • 1...Sd6
        • 2.Rf2#
      • 1...Sh6
        • 2.Rf2#
      • 1...Sd8
        • 2.Rf2#
      • 1...Sh8
        • 2.Rf2#
      • 1...dxe2!
  • Keys
    • 1.Sf3!
      • 1...Kxf3
        • 2.0-0#
      • 1...Se5
        • 2.Rh2#
      • 1...Sg5
        • 2.Rh2#
      • 1...Sd6
        • 2.Rh2#
      • 1...Sh6
        • 2.Rh2#
      • 1...Sd8
        • 2.Rh2#
      • 1...Sh8
        • 2.Rh2#

Anticipated by 120839(1982)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 6
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(c);OGATE::R1(H)
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);P_SPINS(c),S_FLIGHT::0-0
        • S(c);OGATE::R1(H)
      • Refutation
        • P(b);XS(B)
  • Actual
    • S(B);
    • Vars
      • K(a);P_SPINS(c),S_FLIGHT,XS(B)::0-0
      • S(c);::R1(C)
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