MESON Chess Problem Database

Problem Display
PID: 86816 (8/4k3/8/1Q1B3K/4N3/4B3/8/4R3 w - - 0 1)

Pilchenko, Viacheslav Karlovich

Comm., Bron MT, 1992

8/4k3/8/1Q1B3K/4N3/4B3/8/4R3

#2

6 + 1

5454 Near Snap 2009
6490 yacpdb 2009
145 StrateGems 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Kg6?
      • 1...Kf8
        • 2.Bc5#
      • 1...Kd8!
    • 1.Kh6?
      • 1...Kf8
        • 2.Bc5#
      • 1...Kd8!
    • 1.Sg3?
      • 1...Kd6
        • 2.Bf4#
      • 1...Kf6
        • 2.Bd4#
      • 1...Kf8
        • 2.Bh6#
      • 1...Kd8!
    • 1.Sf6?
      • 1...Kd6
        • 2.Bf4#
      • 1...Kd8
        • 2.Qd7#
      • 1...Kf8
        • 2.Bh6#
      • 1...Kxf6!
    • 1.Rc1?
      • 1...Kd8
        • 2.Bg5#
      • 1...Kf8!
    • 1.Rg1?
      • 1...Kf8
        • 2.Bc5#
      • 1...Kd8!
    • 1.Qc6?
      • 1...Kd8
        • 2.Bg5#
      • 1...Kf8!
    • 1.Qd7+?
      • 1...Kf8
        • 2.Bc5#
        • 2.Bh6#
        • 2.Rf1#
        • 2.Qf7#
      • 1...Kxd7!
  • Keys
    • 1.Sd6!
      • 1...Kxd6
        • 2.Bf4#
      • 1...Kf6
        • 2.Bd4#
      • 1...Kd8
        • 2.Bb6#
      • 1...Kf8
        • 2.Bh6#

Anticipated by 18404(1955), 104707(1964-1965), 93179(1965)

This anticipates 162980(2012)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::B(B)
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT,XS(C)::B(B)
      • K(a);S_FLIGHT::B(B)
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