MESON Chess Problem Database

Problem Display
PID: 93722 (7R/8/8/4K3/4B1R1/4pP2/5pPB/5r1k w - - 0 1)

Beszczynski, Jan

Sachove umeni (Ceskoslovensky sach), 1954

7R/8/8/4K3/4B1R1/4pP2/5pPB/5r1k

#2

7 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Bf4#
  • Tries
    • 1.Bg3+?
      • 1...Kxg2
        • 2.Bf4#
      • 1...Kg1!
    • 1.g3?
      • threat
        • 2.f4#
      • 1...Kg2
        • 2.f4#
      • 1...Rg1!
  • Keys
    • 1.f4!
      • threat
        • 2.g3#
      • 1...Rg1
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK::R(G)+B(B)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(A)::R(E)+B(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(A);
      • Threat
        • B(D)+P(C)
      • Vars
        • K(b);S_FLIGHT::B(D)+P(C)
      • Refutation
        • R(a);
  • Actual
    • P(C);
    • Threat
      • B(D)+P(A)
    • Vars
      • R(a);SBLOCK::R(G)+B(B)
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