MESON Chess Problem Database

Problem Display
PID: 149241 (7Q/8/5K2/3p4/4kp2/7R/8/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Freie Presse, 2013

7Q/8/5K2/3p4/4kp2/7R/8/8

#2

3 + 3

15148 Sadier Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Qa8#
  • Tries
    • 1.Ra3?
      • 1...f3
        • 2.Qh4#
      • 1...d4
        • 2.Qa8#
      • 1...Kd4!
    • 1.Rb3?
      • 1...f3
        • 2.Qh4#
      • 1...d4
        • 2.Qa8#
      • 1...Kd4!
    • 1.Qb8?
      • threat
        • 2.Qe5#
      • 1...Kd4
        • 2.Qb4#
      • 1...f3!
    • 1.Qf8?
      • 1...Kd4
        • 2.Qb4#
      • 1...d4
        • 2.Qa8#
      • 1...f3!
  • Keys
    • 1.Rc3!
      • 1...Kd4
        • 2.Kf5#
      • 1...f3
        • 2.Qh4#
      • 1...d4
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB,SBLOCK::QAB(C)
  • Tries
    • Try
      • R(A);
      • Vars
        • P(b);OGATEB::QAR(C)
        • P(c);OGATEB,SBLOCK::QAB(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);
      • Vars
        • P(b);OGATEB::QAR(C)
        • P(c);OGATEB,SBLOCK::QAB(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
        • P(c);OGATEB,SBLOCK::QAB(C)
      • Refutation
        • P(b);
  • Actual
    • R(A);
    • Vars
      • K(a);P-FLIGHT::QAB(C)+K(B)
      • P(b);OGATEB::QAR(C)
      • P(c);OGATEB,SBLOCK::QAB(C)
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