MESON Chess Problem Database

Problem Display
PID: 244194 (8/qn6/b3Q3/5B2/1p1kN3/6n1/3BP1K1/8 w - - 0 1)

Bruch, Wieland

Sachsische Zeitung, 1982

8/qn6/b3Q3/5B2/1p1kN3/6n1/3BP1K1/8

#2

6 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.e3#
  • Tries
    • 1.Sf6?
      • threat
        • 2.Qd5#
      • 1...Qc5
        • 2.e3#
      • 1...Bc4
        • 2.Qe3#
      • 1...Kc5!
    • 1.Qe5+?
      • 1...Kc4
        • 2.Be6#
      • 1...Kxe5!
    • 1.Qd6+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Sxd6!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Qd5#
      • 1...Kc5
        • 2.Be3#
      • 1...bxc3
        • 2.Be3#
      • 1...Qc5
        • 2.e3#
      • 1...Bc4
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(d);SBLOCK::P(B)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(F)
      • Vars
        • Q(e);SBLOCK::P(B)
        • B(d);SBLOCK::QAB1(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);P-FLIGHT::B(E)
      • Refutation
        • K(c);S_FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAB1(F)
      • Refutation
        • S(f);XQ(F)
  • Actual
    • S(D);
    • Threat
      • QAR1(F)
    • Vars
      • K(c);S_FLIGHT::B(A)
      • P(b);SBLOCK,XS(D)::B(A)
      • Q(e);SBLOCK::P(B)
      • B(d);SBLOCK::QAB1(F)
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