MESON Chess Problem Database

Problem Display
PID: 107887 (1n2R3/1K6/2pk4/2p2B2/n1pp3B/4N3/7b/3R4 w - - 0 1)

Castellari, Umberto

Sinfonie Scacchistiche, 1970

1n2R3/1K6/2pk4/2p2B2/n1pp3B/4N3/7b/3R4

#2

6 + 8

6490 yacpdb 2009
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Bg3#
    • 1...Bg3
      • 2.Bxg3#
    • 1...Be5
      • 2.Be7#
    • 1...Sd7
      • 2.Re6#
  • Keys
    • 1.Rg1!
      • threat
        • 2.Rg6#
      • 1...Bxg1
        • 2.Bg3#
      • 1...dxe3
        • 2.Rd1#
      • 1...Bg3
        • 2.Bxg3#
      • 1...Be5
        • 2.Be7#
      • 1...Sd7
        • 2.Re6#

Anticipated by 45416(1968)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::B(C)
    • B(a);N_GUARD::B(C),XB(a)
    • B(a);SBLOCK::B(C)
    • S(h);SBLOCK::R1(F)
  • Actual
    • R(A);N_PINP(d)
    • Threat
      • R(A)
    • Vars
      • B(a);N_GUARD,XR(A)::B(C)
      • P(d);OGATEB,XS(B)::R(A)
      • B(a);N_GUARD::B(C),XB(a)
      • B(a);SBLOCK::B(C)
      • S(h);SBLOCK::R1(F)
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