MESON Chess Problem Database

Problem Display
PID: 222910 (8/3N4/6Q1/3k4/7N/8/3K4/8 w - - 0 1)

Svoboda, Rudolf

Funkschach, 1926

8/3N4/6Q1/3k4/7N/8/3K4/8

#2

4 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qd3#
  • Tries
    • 1.Kc2?
      • 1...Kd4
        • 2.Qd3#
      • 1...Kc4!
    • 1.Ke2?
      • 1...Kd4
        • 2.Qd3#
      • 1...Kc4!
    • 1.Sg2?
      • 1...Kd4
        • 2.Qd3#
      • 1...Kc4!
    • 1.Qc6+?
      • 1...Kd4
        • 2.Sf3#
        • 2.Sf5#
      • 1...Kxc6!
    • 1.Qe6+?
      • 1...Kd4
        • 2.Sf3#
        • 2.Sf5#
      • 1...Kxe6!
    • 1.Qf6?
      • 1...Ke4
        • 2.Qe5#
      • 1...Kc4!
  • Keys
    • 1.Qa6!
      • 1...Kd4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(C)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR1(C)
      • K(a);S_FLIGHT::QAR2(C)
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