MESON Chess Problem Database

Problem Display
PID: 149452 (8/pk1P4/N3p3/K4p1r/1p3Pp1/1Q5p/8/8 w - - 0 1)

Dehler, Ernst Georg

Narodni Politika, 1913

8/pk1P4/N3p3/K4p1r/1p3Pp1/1Q5p/8/8

#2

5 + 8

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...g3
      • 2.Qf3#
    • 1...e5
      • 2.Qd5#
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qc8#
      • 1...Ka8
        • 2.Qc6#
        • 2.Qc8#
      • 1...Rh8!
    • 1.Qc4?
      • threat
        • 2.Qc8#
      • 1...Ka8
        • 2.Qc6#
        • 2.Qc8#
      • 1...Rh8!
    • 1.Qxe6?
      • threat
        • 2.Qd5#
      • 1...Ka8
        • 2.Qd5#
        • 2.Qc6#
      • 1...Rh6!
    • 1.Qxb4+?
      • 1...Ka8
        • 2.Sc7#
        • 2.Qb8#
        • 2.d8Q#
        • 2.d8R#
      • 1...Kc6!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qh1#
      • 1...Kc6
        • 2.d8S#
      • 1...Ka8
        • 2.Qh1#
      • 1...g3
        • 2.Qf3#
      • 1...e5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAB(A)
    • P(f);N_GUARD::QAB(A)
  • Tries
    • Try
      • Q(A);N_PINP(b)
      • Threat
        • QAB1(A)
      • Refutation
        • R(e);
    • Try
      • Q(A);N_PINP(b)
      • Threat
        • QAB1(A)
      • Refutation
        • R(e);
    • Try
      • Q(A);N_PINP(b),XP(f)
      • Threat
        • QAB(A)
      • Refutation
        • R(e);
    • Try
      • Q(A);CHECK,XP(b)
      • Refutation
        • K(h);S_FLIGHT
  • Actual
    • Q(A);N_PINP(b)
    • Threat
      • QAB(A)
    • Vars
      • K(h);S_FLIGHT::P=S
      • K(h);S_FLIGHT::QAB(A)
      • P(c);N_GUARD::QAB(A)
      • P(f);N_GUARD::QAB(A)
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