MESON Chess Problem Database

Problem Display
PID: 79166 (8/7Q/8/6K1/3p4/4kp2/2R5/8 w - - 0 1)

Aleksandrov, Vladimir Aleksandrovich

Problemist Pribuzhya, 1992

8/7Q/8/6K1/3p4/4kp2/2R5/8

#2

3 + 3

3713 Snap 2008
5454 Near Snap 2010

SOLUTION

  • SOUND
  • Tries
    • 1.Rd2?
      • threat
        • 2.Qd3#
      • 1...d3
        • 2.Qxd3#
      • 1...Kxd2!
    • 1.Qf5?
      • 1...d3
        • 2.Qf4#
        • 2.Qe5#
      • 1...f2!
  • Keys
    • 1.Kf5!
      • 1...Kd3
        • 2.Kf4#
      • 1...f2
        • 2.Qh3#
      • 1...d3
        • 2.Qa7#

Anticipated by 4502(1871), 79928(1961), 133964(1963)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • QAR1(C)
      • Vars
        • P(c);::QAR1(C),XP(c)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • Q(C);
      • Refutation
        • P(b);
  • Actual
    • K(B);P-FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAB(C)+K(B)
      • P(b);OGATEB::QAR(C)
      • P(c);OGATEB,SBLOCK::QAB(C)
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