MESON Chess Problem Database

Problem Display
PID: 167335 (2B5/1p2K2n/3p4/R1n3p1/4pkp1/R3b3/1Q2P3/4B3 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Der Tagesspiegel (Berlin), 1997

2B5/1p2K2n/3p4/R1n3p1/4pkp1/R3b3/1Q2P3/4B3

#2

7 + 9

15148 Sadier Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Bg3#
    • 1...Bg1
      • 2.Bg3#
    • 1...Bd2
      • 2.Bg3#
    • 1...Bd4
      • 2.Bg3#
    • 1...Sb3
      • 2.Rf5#
    • 1...Sd3
      • 2.Rf5#
    • 1...Sa4
      • 2.Rf5#
    • 1...Sa6
      • 2.Rf5#
    • 1...Sf6
      • 2.Qxf6#
    • 1...Sf8
      • 2.Qf6#
  • Tries
    • 1.Kxd6?
      • threat
        • 2.Qe5#
      • 1...Bd4
        • 2.Bg3#
      • 1...Sd3
        • 2.Rf5#
      • 1...Sd7!
    • 1.Qd4?
      • threat
        • 2.Qxd6#
      • 1...Bxd4
        • 2.Bg3#
      • 1...Sd3
        • 2.Rf5#
      • 1...Sd7
        • 2.Qxe3#
      • 1...d5!
    • 1.Qd2?
      • threat
        • 2.Qxd6#
      • 1...Ke5
        • 2.Qxd6#
      • 1...Bxd2
        • 2.Bg3#
      • 1...Sd3
        • 2.Rf5#
      • 1...Sd7
        • 2.Qxe3#
      • 1...d5!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qxd6#
      • 1...Ke5
        • 2.Qxd6#
      • 1...Bd4
        • 2.Bg3#
      • 1...Sd3
        • 2.Rf5#
      • 1...Sd7
        • 2.Qxe3#
      • 1...d5
        • 2.Qc7#
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • B(a);::B(A)
    • S(e);OGATE::R1(E)
    • S(i);N_GUARD::QAR2(B),XS(i)
    • S(i);N_GUARD::QAR2(B)
  • Tries
    • Try
      • K(F);S_FLIGHT,XP(g)
      • Threat
        • QAB1(B)
      • Vars
        • B(a);::B(A)
        • S(e);OGATE::R1(E)
      • Refutation
        • S(e);
    • Try
      • Q(B);P_PINP(b)
      • Threat
        • QAB(B),XP(g)
      • Vars
        • B(a);N_SPINP(b),XQ(B)::B(A)
        • S(e);OGATE::R1(E)
        • S(e);::QAB1(B),XB(a)
      • Refutation
        • P(g);
    • Try
      • Q(B);P_PINB(a)
      • Threat
        • QAB(B),XP(g)
      • Vars
        • K(c);N_SPINB(a),P_SPINS(e),S_FLIGHT::QAB1(B),XP(g)
        • B(a);N_SPINB(a),XQ(B)::B(A)
        • S(e);OGATE::R1(E)
        • S(e);::QAB1(B),XB(a)
      • Refutation
        • P(g);
  • Actual
    • Q(B);
    • Threat
      • QAB(B),XP(g)
    • Vars
      • K(c);P_SPINS(e),S_FLIGHT::QAB1(B),XP(g)
      • B(a);::B(A)
      • S(e);OGATE::R1(E)
      • S(e);OGATE::QAB1(B),XB(a)
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