MESON Chess Problem Database

Problem Display
PID: 21045 (8/7q/8/8/5BQ1/3b3p/3K4/7k w - - 0 1)

Bondtke, S

Shakhmatny Vestnik, 1915

8/7q/8/8/5BQ1/3b3p/3K4/7k

#2

3 + 4

3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991

SOLUTION

  • SOUND
  • Tries
    • 1.Qd1+?
      • 1...Bf1
        • 2.Qxf1#
      • 1...Kg2!
    • 1.Qxh3+?
      • 1...Kg1
        • 2.Be3#
      • 1...Qxh3!
  • Keys
    • 1.Be3!
      • threat
        • 2.Qg1#
      • 1...Kh2
        • 2.Qg1#
      • 1...Qg6
        • 2.Qxh3#
      • 1...Qg8
        • 2.Qxh3#
      • 1...Qg7
        • 2.Qxh3#
      • 1...h2
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAR2(C),XB(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK,XP(c)
      • Vars
        • K(a);P-FLIGHT::B(B)
      • Refutation
        • Q(d);XQ(C)
  • Actual
    • B(B);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);P-FLIGHT::QAB1(C)
      • Q(d);N_GUARD::QAR2(C),XP(c)
      • P(c);SBLOCK::QAB(C)
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