MESON Chess Problem Database

Problem Display
PID: 172395 (8/8/p7/r1p5/k1N4Q/2K5/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1997

8/8/p7/r1p5/k1N4Q/2K5/8/8

#2

3 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qf2?
      • 1...Rb5
        • 2.Qa2#
      • 1...Kb5!
    • 1.Qe7?
      • 1...Kb5
        • 2.Qd7#
        • 2.Qe8#
      • 1...Rb5!
    • 1.Qd8?
      • threat
        • 2.Qxa5#
      • 1...Kb5
        • 2.Qd7#
        • 2.Qe8#
      • 1...Rb5!
    • 1.Qh1?
      • 1...Rb5
        • 2.Qa1#
      • 1...Kb5!
    • 1.Qh2?
      • 1...Rb5
        • 2.Qa2#
      • 1...Kb5!
    • 1.Qh3?
      • 1...Kb5
        • 2.Qd7#
      • 1...Rb5!
    • 1.Qe4?
      • 1...Kb5
        • 2.Qe8#
      • 1...Rb5!
    • 1.Qg4?
      • 1...Kb5
        • 2.Qd7#
      • 1...Rb5!
    • 1.Qh5?
      • 1...Kb5
        • 2.Qe8#
      • 1...Rb5!
    • 1.Qh7?
      • 1...Kb5
        • 2.Qd7#
      • 1...Rb5!
    • 1.Qh8?
      • 1...Kb5
        • 2.Qe8#
      • 1...Rb5!
  • Keys
    • 1.Qe1!
      • 1...Kb5
        • 2.Qe8#
      • 1...Rb5
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Vars
        • R(b);SBLOCK::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Refutation
        • R(b);
    • Try
      • Q(C);
      • Threat
        • QAR1(C),XR(b)
      • Refutation
        • R(b);
    • Try
      • Q(C);
      • Vars
        • R(b);SBLOCK::QAR(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • R(b);SBLOCK::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAB(C)
      • Refutation
        • R(b);
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAB(C)
      • Refutation
        • R(b);
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAB(C)
      • Refutation
        • R(b);
    • Try
      • Q(C);
      • Vars
        • K(a);P_SPINP(c),S_FLIGHT::QAB(C)
      • Refutation
        • R(b);
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAB(C)
      • Refutation
        • R(b);
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAB(C)
      • Refutation
        • R(b);
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT::QAB(C)
      • R(b);SBLOCK::QAR(C)
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Developed and maintained by Brian Stephenson.
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