MESON Chess Problem Database

Problem Display
PID: 206402 (2Q1R2K/8/8/3pN3/3k4/1p6/1bb2P2/N1r3BB w - - 0 1)

van Dijk, Johannes

Noord-Hollandsch Dagblad, 1925

2Q1R2K/8/8/3pN3/3k4/1p6/1bb2P2/N1r3BB

#2

8 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Sxb3#
    • 1...Bd1
      • 2.f3#
      • 2.f4#
    • 1...Bd3
      • 2.Sxb3#
      • 2.Sf3#
    • 1...Be4
      • 2.Sxb3#
    • 1...Bf5
      • 2.Sxb3#
    • 1...Bg6
      • 2.Sxb3#
    • 1...Bh7
      • 2.Sxb3#
  • Keys
    • 1.Be4!
      • threat
        • 2.Sf3#
      • 1...Kxe4
        • 2.Qg4#
      • 1...Bxe4
        • 2.Sxb3#
      • 1...dxe4
        • 2.Qc4#
      • 1...Bd1
        • 2.f3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(c);N_GUARD::S(A),XP(d)
  • Actual
    • B(C);
    • Threat
      • S(E)
    • Vars
      • K(e);OGATEB,P-FLIGHT,P_PINS(E),XB(C)::QAR2(F)
      • B(c);N_GUARD,SBLOCK,XB(C)::S(A),XP(d)
      • P(f);N_GUARD,SBLOCK,XB(C)::QAR1(F)
      • B(c);S_CUTR(a)::B(B)+P(D)
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