MESON Chess Problem Database

Problem Display
PID: 189855 (8/8/1p6/1P3p2/1kB5/4Q3/1N6/2K5 w - - 0 1)

Dehler, Otto Georg Edgar

Magyar Sakkvilag, 1912

8/8/1p6/1P3p2/1kB5/4Q3/1N6/2K5

#2

5 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Qd2#
      • 2.Qe1#
      • 2.Qa3#
      • 2.Qc3#
  • Tries
    • 1.Kb1?
      • 1...Ka5
        • 2.Qd2#
        • 2.Qe1#
        • 2.Qa3#
        • 2.Qc3#
      • 1...f4!
    • 1.Kd1?
      • 1...Ka5
        • 2.Qd2#
        • 2.Qe1#
        • 2.Qa3#
        • 2.Qc3#
      • 1...f4!
    • 1.Kc2?
      • 1...Ka5
        • 2.Qd2#
        • 2.Qe1#
        • 2.Qa3#
        • 2.Qc3#
      • 1...f4!
    • 1.Kd2?
      • 1...Ka5
        • 2.Qa3#
        • 2.Qc3#
      • 1...f4!
    • 1.Bf1?
      • 1...Ka5
        • 2.Qd2#
        • 2.Qe1#
        • 2.Qa3#
        • 2.Qc3#
      • 1...f4!
    • 1.Be2?
      • 1...Ka5
        • 2.Qd2#
        • 2.Qa3#
        • 2.Qc3#
      • 1...f4!
    • 1.Qd2+?
      • 1...Ka3
        • 2.Qc3#
        • 2.Qd6#
      • 1...Kc5!
    • 1.Qd4?
      • 1...Ka3
        • 2.Qc3#
        • 2.Qd6#
      • 1...Ka5
        • 2.Qc3#
        • 2.Qd2#
      • 1...f4!
    • 1.Qe1+?
      • 1...Ka3
        • 2.Qc3#
        • 2.Qe7#
      • 1...Kc5!
    • 1.Qb3+?
      • 1...Ka5
        • 2.Qa4#
        • 2.Qa3#
        • 2.Qc3#
      • 1...Kc5!
    • 1.Qe5?
      • 1...Ka3
        • 2.Qc3#
        • 2.Qd6#
        • 2.Qe7#
      • 1...Ka5
        • 2.Qc3#
        • 2.Qe1#
      • 1...f4!
    • 1.Qe7+?
      • 1...Ka5
        • 2.Qa3#
        • 2.Qe1#
      • 1...Kc3!
  • Keys
    • 1.Qf4!
      • 1...Ka3
        • 2.Qd6#
      • 1...Kc3
        • 2.Qd2#
      • 1...Ka5
        • 2.Qd2#
      • 1...Kc5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Refutation
        • P(b);
    • Try
      • K(A);P-FLIGHT
      • Refutation
        • P(b);
    • Try
      • K(A);P-FLIGHT
      • Refutation
        • P(b);
    • Try
      • K(A);S_FLIGHT
      • Refutation
        • P(b);
    • Try
      • B(D);
      • Refutation
        • P(b);
    • Try
      • B(D);
      • Refutation
        • P(b);
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Refutation
        • P(b);
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Refutation
        • P(b);
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT::QAB(C)
      • K(a);S_FLIGHT::QAB1(C)
      • K(a);S_FLIGHT::S(B)
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