MESON Chess Problem Database

Problem Display
PID: 219447 (8/2B5/3N4/1Q6/3k4/8/4Kn2/8 w - - 0 1)

Heim, Wilhelm

Schach-Report, 1988

8/2B5/3N4/1Q6/3k4/8/4Kn2/8

#2

4 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5+?
      • 1...Ke4
        • 2.Qe5#
      • 1...Kc3!
    • 1.Sb7?
      • 1...Ke4
        • 2.Qe5#
      • 1...Sd1
        • 2.Qd3#
      • 1...Sh1
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sh3
        • 2.Qd3#
      • 1...Se4
        • 2.Be5#
        • 2.Qd3#
      • 1...Sg4
        • 2.Qd3#
      • 1...Kc3!
  • Keys
    • 1.Se4!
      • 1...Kxe4
        • 2.Qe5#
      • 1...Sxe4
        • 2.Be5#
      • 1...Sd1
        • 2.Qd3#
      • 1...Sh1
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sh3
        • 2.Qd3#
      • 1...Sg4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
        • S(a);N_GUARD::QAR1(B)
        • S(a);N_GUARD::QAR1(B),XS(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(b);P-FLIGHT,XS(C)::QAR1(B)
      • S(a);SBLOCK,XS(C)::B(D)
      • S(a);N_GUARD::QAR1(B)
      • S(a);N_GUARD::QAR1(B),XS(a)
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