MESON Chess Problem Database

Problem Display
PID: 206921 (8/1Q6/BP6/8/3p4/2k5/1R6/6K1 w - - 0 1)

Harrwitz, Daniel

Illustrated London News, 1849

8/1Q6/BP6/8/3p4/2k5/1R6/6K1

#2

5 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Qg7#
  • Tries
    • 1.Kf1?
      • 1...d3
        • 2.Qg7#
      • 1...Kxb2!
    • 1.Kh1?
      • 1...d3
        • 2.Qg7#
      • 1...Kxb2!
    • 1.Kf2?
      • 1...d3
        • 2.Qg7#
      • 1...Kxb2!
    • 1.Kg2?
      • 1...d3
        • 2.Qg7#
      • 1...Kxb2!
    • 1.Kh2?
      • 1...d3
        • 2.Qg7#
      • 1...Kxb2!
    • 1.Bb5?
      • 1...d3
        • 2.Qg7#
      • 1...Kxb2!
    • 1.Qh1?
      • 1...d3
        • 2.Qh8#
      • 1...Kxb2!
    • 1.Qf3+?
      • 1...d3
        • 2.Qf6#
      • 1...Kxb2!
    • 1.Qe4?
      • threat
        • 2.Qc2#
      • 1...d3
        • 2.Qb4#
        • 2.Qe5#
      • 1...Kxb2!
    • 1.Qd5?
      • threat
        • 2.Qb3#
      • 1...d3
        • 2.Qe5#
      • 1...Kxb2!
    • 1.Qa8?
      • 1...d3
        • 2.Qh8#
      • 1...Kxb2!
    • 1.Qa7?
      • 1...d3
        • 2.Qg7#
      • 1...Kxb2!
    • 1.Qd7?
      • 1...d3
        • 2.Qg7#
      • 1...Kxb2!
    • 1.Qe7?
      • threat
        • 2.Qa3#
        • 2.Qb4#
      • 1...d3
        • 2.Qb4#
        • 2.Qf6#
        • 2.Qe5#
        • 2.Qg7#
      • 1...Kxb2!
    • 1.Qf7?
      • threat
        • 2.Qb3#
      • 1...d3
        • 2.Qf6#
        • 2.Qg7#
      • 1...Kxb2!
    • 1.Qh7?
      • threat
        • 2.Qc2#
      • 1...d3
        • 2.Qg7#
        • 2.Qh8#
      • 1...Kxb2!
    • 1.Qb8?
      • 1...d3
        • 2.Qe5#
        • 2.Qh8#
      • 1...Kxb2!
  • Keys
    • 1.Qg2!
      • 1...d3
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB::QAB(E)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);OGATEB::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);OGATEB::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(b);OGATEB::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);OGATEB::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(b);OGATEB::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • B(C);
      • Vars
        • P(b);OGATEB::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(E);
      • Vars
        • P(b);OGATEB::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(E);CHECK
      • Vars
        • P(b);OGATEB,P_SPINP(b)::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • P(b);OGATEB::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(E);
      • Vars
        • P(b);OGATEB::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(E);
      • Vars
        • P(b);OGATEB::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(E);
      • Vars
        • P(b);OGATEB::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(E);
      • Refutation
        • K(a);S_FLIGHT,XR(B)
  • Actual
    • Q(E);
    • Vars
      • P(b);OGATEB::QAB(E)
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