MESON Chess Problem Database

Problem Display
PID: 270980 (3N3B/2p5/6Rp/K2k3r/1P3P2/3Bp3/8/3R4 w - - 0 1)

Keirans, Peteris

Schackvarlden, 1928

3N3B/2p5/6Rp/K2k3r/1P3P2/3Bp3/8/3R4

#2

8 + 5

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Rc1?
      • threat
        • 2.Rc5#
      • 1...c5
        • 2.Rxc5#
      • 1...Re5!
    • 1.Re6?
      • threat
        • 2.Bf1#
        • 2.Be2#
        • 2.Bb5#
        • 2.Ba6#
      • 1...Rh1
        • 2.Bf1#
      • 1...Rh2
        • 2.Be2#
      • 1...e2
        • 2.Bxe2#
      • 1...Re5!
  • Keys
    • 1.Rg7!
      • threat
        • 2.Rd7#
      • 1...Kd4+
        • 2.Rg5#
      • 1...Kd6+
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • R1(A)
      • Vars
        • P(e);::R1(A),XP(e)
      • Refutation
        • R(c);
    • Try
      • R(F);
      • Threat
        • DUALS(4)
      • Vars
        • R(c);::R(A)+B(B)
        • P(a);::R(A)+B(B),XP(a)
      • Refutation
        • R(c);
  • Actual
    • R(F);
    • Threat
      • R(F)
    • Vars
      • K(b);CHECK,N_GUARD,P-FLIGHT,S_CUTP(d),S_CUTR(c)::B(H)+R(F)
      • K(b);CHECK,N_GUARD,P-FLIGHT::R(A)+B(B)
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