MESON Chess Problem Database

Problem Display
PID: 100769 (8/4B2p/4p2P/3pk3/6p1/p2Pp1P1/P3P1K1/7Q w - - 0 1)

Ort, Josef

Narodni listy, 1919

8/4B2p/4p2P/3pk3/6p1/p2Pp1P1/P3P1K1/7Q

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qa1#
    • 1...Kf5
      • 2.Qh5#
    • 1...d4
      • 2.Qh5#
  • Tries
    • 1.Kf1?
      • 1...Kf5
        • 2.Qh5#
      • 1...d4
        • 2.Qe4#
        • 2.Qh5#
      • 1...Kd4!
    • 1.Kg1?
      • 1...Kf5
        • 2.Qh5#
      • 1...d4
        • 2.Qe4#
        • 2.Qh5#
      • 1...Kd4!
    • 1.Kh2?
      • 1...Kd4
        • 2.Qa1#
      • 1...d4
        • 2.Qe4#
      • 1...Kf5!
    • 1.Qa1+?
      • 1...Kf5
        • 2.Qf6#
      • 1...d4!
    • 1.Qc1?
      • 1...Kd4
        • 2.Qa1#
      • 1...d4
        • 2.Qc5#
      • 1...Kf5!
    • 1.Qe1?
      • 1...Kd4
        • 2.Qa1#
      • 1...d4
        • 2.Qa5#
      • 1...Kf5!
    • 1.Qf1?
      • threat
        • 2.Qf4#
        • 2.Qf6#
      • 1...Kd4
        • 2.Qa1#
      • 1...d4!
    • 1.Qh2?
      • 1...Kf5
        • 2.Qh5#
      • 1...d4
        • 2.Qh5#
      • 1...Kd4!
    • 1.Qh4?
      • threat
        • 2.Qf6#
      • 1...Kf5
        • 2.Qg5#
        • 2.Qf6#
        • 2.Qh5#
      • 1...d4
        • 2.Qg5#
        • 2.Qh5#
      • 1...Kd4!
  • Keys
    • 1.Qb1!
      • 1...Kd4
        • 2.Qa1#
      • 1...Kf5
        • 2.d4#
      • 1...d4
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::QAB(A)
    • K(e);P-FLIGHT::QAR2(A)
    • P(d);SBLOCK::QAR(A)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(e);P-FLIGHT::QAR2(A)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(e);P-FLIGHT::QAR2(A)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(e);S_FLIGHT::QAB(A)
        • P(d);N_GUARD::QAR1(A)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • Q(A);
      • Vars
        • K(e);S_FLIGHT::QAB(A)
        • P(d);OGATEB::QAR2(A)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(e);S_FLIGHT::QAB(A)
        • P(d);OGATEB,SBLOCK::QAR(A)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(e);S_FLIGHT::QAB(A)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Vars
        • K(e);P-FLIGHT::QAR2(A)
        • P(d);SBLOCK::QAR(A)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Refutation
        • K(e);P_SPINP(c),S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(e);S_FLIGHT::QAB(A)
      • K(e);P-FLIGHT::QAB(A)+P(E)
      • P(d);OGATEB,SBLOCK::QAR(A)
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