MESON Chess Problem Database

Problem Display
PID: 47741 (8/4N3/3k4/5R2/Q7/K6B/8/8 w - - 0 1)

Vishkov, Anatoly Ivanovich

2nd Prize, Krasnaya iskra, 1989

8/4N3/3k4/5R2/Q7/K6B/8/8

#2

5 + 1

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5?
      • 1...Ke6
        • 2.Qc6#
      • 1...Kc5!
    • 1.Sg6?
      • 1...Ke6
        • 2.Qc6#
      • 1...Kc7!
    • 1.Sc8+?
      • 1...Ke6
        • 2.Qc6#
        • 2.Qe8#
      • 1...Kc7!
    • 1.Sg8?
      • 1...Ke6
        • 2.Qc6#
      • 1...Kc7!
    • 1.Rf1?
      • 1...Kc5
        • 2.Qb4#
      • 1...Ke5
        • 2.Qf4#
      • 1...Kxe7
        • 2.Qd7#
      • 1...Kc7!
    • 1.Rf2?
      • 1...Kc5
        • 2.Qb4#
      • 1...Ke5
        • 2.Qf4#
      • 1...Kxe7
        • 2.Qd7#
      • 1...Kc7!
    • 1.Rf3?
      • 1...Kc5
        • 2.Qb4#
      • 1...Ke5
        • 2.Qf4#
      • 1...Kxe7
        • 2.Qd7#
      • 1...Kc7!
    • 1.Rf4?
      • 1...Kc5
        • 2.Qc6#
        • 2.Qb4#
      • 1...Ke5
        • 2.Qd4#
      • 1...Kxe7
        • 2.Qd7#
      • 1...Kc7!
    • 1.Rc5?
      • 1...Kxc5
        • 2.Qb4#
      • 1...Kxe7!
    • 1.Rd5+?
      • 1...Kc7
        • 2.Qa7#
      • 1...Kxe7!
    • 1.Rf7?
      • 1...Kc5
        • 2.Qb4#
      • 1...Ke5
        • 2.Qf4#
      • 1...Kc7!
    • 1.Qe8?
      • 1...Ke6
        • 2.Sc8#
      • 1...Kc7!
  • Keys
    • 1.Rf8!
      • 1...Kc5
        • 2.Qb4#
      • 1...Ke5
        • 2.Qf4#
      • 1...Kc7
        • 2.Qc6#
      • 1...Kxe7
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);S_FLIGHT,XS(E)::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);S_FLIGHT,XS(E)::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);S_FLIGHT,XS(E)::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • K(a);S_FLIGHT,XS(E)::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(D)::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
    • Try
      • R(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR(C)+S(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(a);S_FLIGHT::QAB1(C)
      • K(a);S_FLIGHT::QAR1(C)
      • K(a);S_FLIGHT,XS(E)::QAB(C)
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