MESON Chess Problem Database

Problem Display
PID: 52855 (B7/8/3p1Q2/3rN1p1/N2pk1p1/2P1P1bR/3Pp3/2K1Rn2 w - - 0 1)

Knuppert, Hugo

Problemnoter, 1956

B7/8/3p1Q2/3rN1p1/N2pk1p1/2P1P1bR/3Pp3/2K1Rn2

#2

10 + 9

45 Schach 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe1
      • 2.d3#
    • 1...Bf2
      • 2.d3#
    • 1...Bh2
      • 2.d3#
    • 1...Bf4
      • 2.d3#
    • 1...Bh4
      • 2.d3#
    • 1...Bxe5
      • 2.Qg6#
    • 1...Sxe3
      • 2.d3#
    • 1...dxc3
      • 2.Sxc3#
    • 1...dxe3
      • 2.d3#
    • 1...dxe5
      • 2.Sc5#
  • Tries
    • 1.Rxe2?
      • threat
        • 2.d3#
      • 1...Bxe5
        • 2.Qg6#
      • 1...Sxd2
        • 2.exd4#
      • 1...dxe5
        • 2.Sc5#
      • 1...d3!
  • Keys
    • 1.exd4!
      • 1...Bxe1
        • 2.d3#
      • 1...Bxe5
        • 2.d3#
      • 1...Sxd2
        • 2.Rxe2#
      • 1...gxh3
        • 2.Qf3#
      • 1...dxe5
        • 2.Sc5#
      • 1...Bf2
        • 2.d3#
      • 1...Bh2
        • 2.d3#
      • 1...Bf4
        • 2.Qg6#
      • 1...Bh4
        • 2.d3#
      • 1...Sh2
        • 2.Rxe2#
      • 1...Se3
        • 2.d3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(c);XR(B)::P(C)
    • B(c);::P(C)
    • B(c);SBLOCK,XS(H)::QAB(I)
    • S(a);SBLOCK,XP(E)::P(C)
    • P(d);XP(D)::S(G),XP(d)
    • P(d);SBLOCK,XP(E)::P(C)
    • P(i);N_GUARD,XS(H)::S(G)
  • Tries
    • Try
      • R(B);XP(b)
      • Threat
        • P(C)
      • Vars
        • B(c);SBLOCK,XS(H)::QAB(I)
        • S(a);N_GUARD,XP(C)::R(B)+P(E),XP(d)
        • P(i);N_GUARD,XS(H)::S(G)
      • Refutation
        • P(d);
  • Actual
    • P(E);P_PINP(b),XP(d)
    • Vars
      • B(c);N_SPINP(b),XR(B)::P(C)
      • B(c);XS(H)::P(C)
      • S(a);N_GUARD,XP(C)::R(B),XP(b)
      • P(f);N_GUARD,XR(F)::QAB1(I)
      • P(i);N_GUARD,XS(H)::S(G)
      • B(c);::P(C)
      • B(c);P_PINP(C),SBLOCK::QAB(I)
      • S(a);N_GUARD::R(B),XP(b)
      • S(a);N_SPINP(b),SBLOCK::P(C)
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