MESON Chess Problem Database

Problem Display
PID: 202845 (8/8/4K3/4Q2p/6k1/3P2N1/8/8 w - - 0 1)

Fiedler, Frank

Sachsische Zeitung, 2018

8/8/4K3/4Q2p/6k1/3P2N1/8/8

#2

4 + 2

5454 Near Snap 2020
15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sf1?
      • threat
        • 2.Qg3#
      • 1...Kh3
        • 2.Qg3#
      • 1...Kh4
        • 2.Qg3#
      • 1...h4
        • 2.Qf5#
      • 1...Kf3!
    • 1.Se2?
      • threat
        • 2.Qg3#
      • 1...Kh3
        • 2.Qg3#
      • 1...Kh4
        • 2.Qg3#
      • 1...h4
        • 2.Qf5#
      • 1...Kf3!
    • 1.Se4?
      • threat
        • 2.Qg3#
      • 1...Kh3
        • 2.Qg3#
      • 1...Kh4
        • 2.Qg3#
      • 1...h4
        • 2.Qf5#
      • 1...Kf3!
  • Keys
    • 1.Sh1!
      • threat
        • 2.Qg3#
      • 1...Kf3
        • 2.Qe4#
      • 1...Kh3
        • 2.Qg3#
      • 1...Kh4
        • 2.Qg3#
      • 1...h4
        • 2.Qf5#

Anticipated by 24481(1985)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • K(a);P-FLIGHT::QAB1(C)
        • P(b);SBLOCK::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • K(a);P-FLIGHT::QAB1(C)
        • P(b);SBLOCK::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • K(a);P-FLIGHT::QAB1(C)
        • P(b);SBLOCK::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);S_FLIGHT::QAB1(C)
      • K(a);S_FLIGHT::QAR1(C)
      • K(a);P-FLIGHT::QAB1(C)
      • P(b);SBLOCK::QAB1(C)
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