MESON Chess Problem Database

Problem Display
PID: 86616 (1R6/1Bk1N3/6Q1/6R1/8/8/8/3K4 w - - 0 1)

Gavriliv, Evgeni M

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Canadian Chess Chat, 1980

1R6/1Bk1N3/6Q1/6R1/8/8/8/3K4

#2

6 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5+?
      • 1...Kd7
        • 2.Bc6#
        • 2.Qc6#
      • 1...Kxb8!
    • 1.Sf5?
      • threat
        • 2.Qd6#
      • 1...Kd7
        • 2.Qf7#
        • 2.Qc6#
        • 2.Qd6#
      • 1...Kxb8!
    • 1.Sg8?
      • 1...Kd7
        • 2.Qc6#
      • 1...Kxb8!
    • 1.Bh1?
      • 1...Kxb8
        • 2.Qb6#
      • 1...Kd7!
    • 1.Bg2?
      • 1...Kxb8
        • 2.Qb6#
      • 1...Kd7!
    • 1.Bf3?
      • 1...Kxb8
        • 2.Qb6#
      • 1...Kd7!
    • 1.Be4?
      • 1...Kxb8
        • 2.Qb6#
      • 1...Kd7!
    • 1.Bd5?
      • 1...Kxb8
        • 2.Qb6#
      • 1...Kd7!
    • 1.Re5?
      • 1...Kd7
        • 2.Qc6#
      • 1...Kxb8!
    • 1.Ra8?
      • threat
        • 2.Qc6#
      • 1...Kxb7
        • 2.Qc6#
      • 1...Kd7!
    • 1.Re8?
      • threat
        • 2.Qc6#
      • 1...Kd7
        • 2.Qc6#
      • 1...Kxb7!
  • Keys
    • 1.Qf7!
      • 1...Kb6
        • 2.Sc8#
      • 1...Kd6
        • 2.Sc8#
      • 1...Kd7
        • 2.Sf5#
      • 1...Kxb8
        • 2.Sc6#

FEATURES

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