MESON Chess Problem Database

Problem Display
PID: 196894 (4Kb2/6N1/3Rp1p1/1P2kr2/1PP2R1P/Q2p2p1/3r2P1/8 w - - 0 1)

Fritsch, Karl

Deutsche Schachzeitung, 1919

4Kb2/6N1/3Rp1p1/1P2kr2/1PP2R1P/Q2p2p1/3r2P1/8

#2

10 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Qc3#
  • Tries
    • 1.Qc3+?
      • 1...Kxf4
        • 2.Qd4#
      • 1...Kxd6!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qd4#
      • 1...Kxf4
        • 2.Qd4#
      • 1...Kxd6
        • 2.Qb8#
      • 1...Kf6
        • 2.Rxe6#
        • 2.Qd4#
      • 1...Rxf4
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(d);P_SPINP(f),P_SPINR(e),S_FLIGHT::QAB(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);S_FLIGHT,XR(E)::QAR2(B)
      • Refutation
        • K(d);S_FLIGHT,XR(H)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(d);S_FLIGHT,XR(E)::QAR2(B)
      • K(d);OGATEB,S_FLIGHT,XR(H)::QAB(B)
      • R(e);SBLOCK,XR(E)::R1(H),XP(f)
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