MESON Chess Problem Database

Problem Display
PID: 214666 (8/Q6K/7N/8/3P4/1Rp1kBp1/6P1/8 w - - 0 1)

Klark, Dmitry Vasilevich

Vsemirnaya Illustrantiya, 1880

8/Q6K/7N/8/3P4/1Rp1kBp1/6P1/8

#2

7 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qc5?
      • 1...Kd2
        • 2.Qxc3#
      • 1...Kd3
        • 2.Qxc3#
      • 1...Kf4
        • 2.Qe5#
      • 1...Kf2!
    • 1.Qa5?
      • 1...Kd2
        • 2.Qxc3#
      • 1...Kd3
        • 2.Qxc3#
      • 1...Kxd4
        • 2.Qxc3#
      • 1...Kf4
        • 2.Qe5#
      • 1...Kf2!
    • 1.Qc7?
      • 1...Kd2
        • 2.Qxc3#
      • 1...Kd3
        • 2.Qxc3#
      • 1...Kxd4
        • 2.Qxc3#
      • 1...Kf2!
  • Keys
    • 1.Qa1!
      • 1...Kd2
        • 2.Qxc3#
      • 1...Kf2
        • 2.Sg4#
      • 1...Kd3
        • 2.Qxc3#
      • 1...Kxd4
        • 2.Qxc3#
      • 1...Kf4
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(F),XP(a)
        • K(b);P-FLIGHT::QAR1(F),XP(a)
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(F)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(b);S_FLIGHT::QAB1(F),XP(a)
        • K(b);P-FLIGHT::QAR1(F),XP(a)
        • K(b);N_SPINP(a),S_FLIGHT,XP(D)::QAB1(F),XP(a)
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(F)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(F),XP(a)
        • K(b);P-FLIGHT::QAR1(F),XP(a)
        • K(b);N_SPINP(a),S_FLIGHT,XP(D)::QAB1(F),XP(a)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(b);N_SPINP(a),S_FLIGHT::QAB1(F),XP(a)
      • K(b);N_SPINP(a),S_FLIGHT::S(E)
      • K(b);P-FLIGHT::QAR1(F),XP(a)
      • K(b);S_FLIGHT,XP(D)::QAB1(F),XP(a)
      • K(b);N_SPINP(a),S_FLIGHT::QAB(F)
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Developed and maintained by Brian Stephenson.
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