MESON Chess Problem Database

Problem Display
PID: 81939 (1K5n/1BB2p1r/3NP2b/Qp4p1/P2P1k2/4R1Rp/2bP1p2/1qr1n3 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Chess, 1956

1K5n/1BB2p1r/3NP2b/Qp4p1/P2P1k2/4R1Rp/2bP1p2/1qr1n3

#2

11 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5
      • 2.Sc4#
    • 1...Sg2
      • 2.Ref3#
    • 1...Sd3
      • 2.Ref3#
    • 1...Sf3
      • 2.Rexf3#
    • 1...bxa4
      • 2.Sc4#
      • 2.Se4#
      • 2.Sf5#
      • 2.Sxf7#
      • 2.Sc8#
      • 2.Se8#
      • 2.Qe5#
    • 1...b4
      • 2.Sc4#
      • 2.Se4#
      • 2.Sf5#
      • 2.Sxf7#
      • 2.Sc8#
      • 2.Se8#
      • 2.Qe5#
    • 1...f5
      • 2.Sf7#
  • Keys
    • 1.Bf3!
      • threat
        • 2.Rg4#
      • 1...bxa4+
        • 2.Sb7#
      • 1...Kxg3
        • 2.Sf5#
      • 1...Sxf3
        • 2.Rexf3#
      • 1...g4
        • 2.Rxg4#
      • 1...Bf5
        • 2.Sc4#
      • 1...f5
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(d);SBLOCK::B(J)+S(G)
    • S(c);N_GUARD::R1(B)
    • S(c);N_GUARD::R1(B),XS(c)
    • P(k);SBLOCK::B(J)+S(G)
  • Actual
    • B(I);
    • Threat
      • R1(C)
    • Vars
      • P(h);CHECK,XP(D)::B(J)+S(G)
      • K(g);S_FLIGHT,XR(C)::B(J)+S(G),DCHECK
      • S(c);OGATE,XB(I)::R1(B),XS(c)
      • P(i);::R1(C),XP(i)
      • B(d);SBLOCK::B(J)+S(G)
      • P(k);SBLOCK::B(J)+S(G)
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