MESON Chess Problem Database

Problem Display
PID: 249532 (8/8/8/4p3/8/3k3B/1K1BNQ2/8 w - - 0 1)

Curth, Heinz

Deutsche Schachzeitung, 1976

8/8/8/4p3/8/3k3B/1K1BNQ2/8

#2

5 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sc1+?
      • 1...Ke4
        • 2.Bg2#
      • 1...Kc4!
    • 1.Sf4+?
      • 1...Kc4
        • 2.Bf1#
      • 1...Ke4
        • 2.Qe3#
      • 1...exf4!
    • 1.Bg4?
      • 1...Kxd2
        • 2.Sc1#
        • 2.Sf4#
      • 1...Ke4
        • 2.Qf3#
      • 1...e4
        • 2.Qd4#
      • 1...Kc4!
    • 1.Be6?
      • threat
        • 2.Qe3#
      • 1...Ke4
        • 2.Qe3#
        • 2.Qf5#
      • 1...Kxd2!
  • Keys
    • 1.Bf1!
      • threat
        • 2.Sc3#
        • 2.Sg3#
      • 1...Kxd2
        • 2.Sc3#
      • 1...Kc4
        • 2.Sf4#
      • 1...Ke4
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::B(E)
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • P(b);XS(C)
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
        • P(b);N_GUARD::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Threat
        • QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XB(B)
  • Actual
    • B(E);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT,XB(B)::QAR(D)+S(C)
      • K(a);S_FLIGHT::B(E)+S(C)
      • K(a);S_FLIGHT::S(C)
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