MESON Chess Problem Database

Problem Display
PID: 219021 (6K1/8/4pN2/R1N1k3/4B3/1P6/3B1P2/8 w - - 0 1)

Nix, John Gilbert

Baltimore American and Commercial Advertiser, 1882

6K1/8/4pN2/R1N1k3/4B3/1P6/3B1P2/8

#2

8 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Sxe6#
  • Tries
    • 1.Kf7?
      • 1...Kd4
        • 2.Sxe6#
      • 1...Kd6!
    • 1.Kg7?
      • 1...Kd4
        • 2.Sxe6#
      • 1...Kd6!
    • 1.Kf8?
      • 1...Kd4
        • 2.Sxe6#
      • 1...Kxf6
        • 2.Sd7#
      • 1...Kd6!
    • 1.Sd3+?
      • 1...Kd4
        • 2.Ra4#
      • 1...Kxf6
        • 2.Bg5#
      • 1...Kd6!
    • 1.Sa4+?
      • 1...Kd4
        • 2.Bc3#
        • 2.Be3#
      • 1...Kxf6
        • 2.Bg5#
      • 1...Kd6!
    • 1.Sa6+?
      • 1...Kd6
        • 2.Bb4#
      • 1...Kxf6
        • 2.Bg5#
      • 1...Kd4!
    • 1.Sb7+?
      • 1...Kxf6
        • 2.Bg5#
      • 1...Kd4!
    • 1.Scd7+?
      • 1...Kd4
        • 2.Ra4#
      • 1...Kd6!
    • 1.Sfd7+?
      • 1...Kd4
        • 2.Ra4#
      • 1...Kd6!
    • 1.Bc3+?
      • 1...Kf4
        • 2.Sd3#
        • 2.Sxe6#
      • 1...Kd6!
    • 1.Ra6?
      • 1...Kxf6
        • 2.Rxe6#
      • 1...Kd4!
  • Keys
    • 1.Bb4!
      • 1...Kd4
        • 2.Sxe6#
      • 1...Kf4
        • 2.Sd3#
        • 2.Sxe6#
      • 1...Kd6
        • 2.Sa6#
      • 1...Kxf6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(F),XP(b)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::S(F),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(H);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::S(F),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(H);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::S(F),XP(b)
        • K(a);S_FLIGHT,XS(G)::S(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(a);S_FLIGHT::R(E)
        • K(a);S_FLIGHT,XS(G)::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(G)::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(a);S_FLIGHT::B(A)
        • K(a);S_FLIGHT,XS(G)::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(G)::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(a);S_FLIGHT::R(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(G);CHECK
      • Vars
        • K(a);S_FLIGHT::R(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT,XS(G)::R1(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(a);S_FLIGHT::S(F),XP(b)
      • K(a);S_FLIGHT::B(A)+S(F)
      • K(a);S_FLIGHT,XS(G)::S(F)
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