MESON Chess Problem Database

Problem Display
PID: 144642 (2B3Q1/1rpppr2/3k4/NR1b1RN1/3P2K1/n1n2p2/8/2B5 w - - 0 1)

Hjelle, David

Problemisten, 1946

2B3Q1/1rpppr2/3k4/NR1b1RN1/3P2K1/n1n2p2/8/2B5

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6
      • 2.Bxa3#
    • 1...Be6
      • 2.Bf4#
    • 1...Sb1
      • 2.Rbxd5#
      • 2.Rfxd5#
    • 1...Sd1
      • 2.Rbxd5#
      • 2.Rfxd5#
    • 1...Sa2
      • 2.Rbxd5#
      • 2.Rfxd5#
    • 1...Se2
      • 2.Rbxd5#
      • 2.Rfxd5#
    • 1...Sa4
      • 2.Rbxd5#
      • 2.Rfxd5#
    • 1...Se4
      • 2.Rbxd5#
      • 2.Rfxd5#
  • Tries
    • 1.Sxf7+?
      • 1...Ke6
        • 2.Qg6#
      • 1...Bxf7!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qxd7#
      • 1...Bc6
        • 2.Bxa3#
      • 1...Be6
        • 2.Bf4#
      • 1...c5
        • 2.dxc5#
      • 1...c6
        • 2.Sxb7#
      • 1...e5
        • 2.dxe5#
      • 1...e6
        • 2.Sxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(d);S_CUTP(g)::B(A),XS(a)
    • B(d);P_PINR(F),S_CUTP(i)::B(A)
  • Tries
    • Try
      • S(G);CHECK,XR(j)
      • Vars
        • K(e);P-FLIGHT,P_SPINP(h)::QAR2(I)
      • Refutation
        • B(d);XS(G)
  • Actual
    • Q(I);P_PINP(h)
    • Threat
      • QAR1(I),XP(h)
    • Vars
      • B(d);S_CUTP(g)::B(A),XS(a)
      • B(d);P_PINR(F),S_CUTP(i)::B(A)
      • P(g);OGATE::P(B),XP(g)
      • P(g);SBLOCK,S_CUTB(d)::S(D),XR(f)
      • P(i);OGATE::P(B),XP(i)
      • P(i);SBLOCK,S_CUTB(d)::S(G),XR(j)
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