MESON Chess Problem Database

Problem Display
PID: 212976 (8/8/8/8/2Q5/5BK1/3k4/8 w - - 0 1)

Breuer, Joseph Theodor

Grob, Frank

Jungwirth, Otto

Latzel, Gerhard Paul

Deutsche Schachzeitung, 1968

8/8/8/8/2Q5/5BK1/3k4/8

#2

3 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke1
      • 2.Qe2#
      • 2.Qc1#
    • 1...Ke3
      • 2.Qc3#
  • Tries
    • 1.Kg2?
      • 1...Ke1
        • 2.Qe2#
        • 2.Qc1#
        • 2.Qc3#
        • 2.Qb4#
      • 1...Ke3!
    • 1.Kh2?
      • 1...Ke1
        • 2.Qe2#
      • 1...Ke3!
    • 1.Kh3?
      • 1...Ke1
        • 2.Qe2#
      • 1...Ke3!
    • 1.Kg4?
      • 1...Ke1
        • 2.Qe2#
      • 1...Ke3!
    • 1.Kh4?
      • 1...Ke1
        • 2.Qe2#
      • 1...Ke3!
    • 1.Be2?
      • 1...Ke3
        • 2.Qd3#
      • 1...Ke1!
    • 1.Bg4?
      • 1...Ke1
        • 2.Qe2#
        • 2.Qc1#
      • 1...Ke3!
    • 1.Bh5?
      • 1...Ke1
        • 2.Qe2#
        • 2.Qc1#
      • 1...Ke3!
    • 1.Qb3?
      • 1...Ke1
        • 2.Qd1#
      • 1...Kc1!
    • 1.Qc2+?
      • 1...Ke1
        • 2.Qd1#
        • 2.Qc1#
        • 2.Qe2#
        • 2.Qf2#
      • 1...Ke3
        • 2.Qc3#
      • 1...Kxc2!
    • 1.Qc5?
      • 1...Ke1
        • 2.Qf2#
        • 2.Qc1#
      • 1...Kd3!
    • 1.Qc6?
      • 1...Ke1
        • 2.Qc1#
      • 1...Ke3
        • 2.Qc3#
      • 1...Kd3!
    • 1.Qc7?
      • 1...Ke1
        • 2.Qc1#
      • 1...Ke3
        • 2.Qc3#
      • 1...Kd3!
    • 1.Qc8?
      • 1...Ke1
        • 2.Qc1#
      • 1...Ke3
        • 2.Qc3#
      • 1...Kd3!
  • Keys
    • 1.Kf4!
      • 1...Ke1
        • 2.Qe2#

FEATURES

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