MESON Chess Problem Database

Problem Display
PID: 46305 (8/8/8/8/5p2/8/2R5/RQ2K1Nk w Q - 0 1)

Kapustin, Fedor Mikhailovich

Kudesnik, 2001

8/8/8/8/5p2/8/2R5/RQ2K1Nk

#2

5 + 2

4883 Still More Fun with Chess Miniatures 2002
136 Problem Observer 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Kf2?
      • threat
        • 2.Sf3#
      • 1...f3
        • 2.Sxf3#
      • 1...Kh2!
    • 1.Re2?
      • 1...Kxg1
        • 2.Kd2#
      • 1...f3!
    • 1.Rf2?
      • 1...Kxg1
        • 2.Ke2#
      • 1...f3!
    • 1.Qa2?
      • 1...Kxg1
        • 2.0-0-0#
      • 1...f3!
    • 1.Qb2?
      • 1...Kxg1
        • 2.0-0-0#
      • 1...f3!
    • 1.Qb3?
      • 1...Kxg1
        • 2.0-0-0#
      • 1...f3!
    • 1.Qb4?
      • 1...Kxg1
        • 2.0-0-0#
      • 1...f3!
    • 1.Qb5?
      • 1...Kxg1
        • 2.Qf1#
        • 2.0-0-0#
      • 1...f3!
    • 1.Qb7+?
      • 1...Kxg1
        • 2.Qg2#
        • 2.0-0-0#
      • 1...f3!
  • Keys
    • 1.Qb8!
      • 1...Kxg1
        • 2.0-0-0#
      • 1...f3
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • QAR(B)+S(D)
      • Vars
        • P(b);::QAR(B)+S(D),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);P-FLIGHT,XS(D)::QAR(B)+K(C)
      • Refutation
        • P(b);
    • Try
      • R(E);
      • Vars
        • K(a);P-FLIGHT,XS(D)::QAR(B)+K(C)
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT,XS(D)::0-0-0
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT,XS(D)::0-0-0
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT,XS(D)::0-0-0
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT,XS(D)::0-0-0
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Refutation
        • P(b);
    • Try
      • Q(B);CHECK
      • Refutation
        • P(b);P_SPINP(b)
  • Actual
    • Q(B);
    • Vars
      • K(a);P-FLIGHT,XS(D)::0-0-0
      • P(b);OGATE::QAR1(B)
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