MESON Chess Problem Database

Problem Display
PID: 222492 (8/7p/2R1P2P/3pk2K/3N1N2/5P1p/7B/8 w - - 0 1)

Belcher, Charles D

Philadelphia Times, 1884

8/7p/2R1P2P/3pk2K/3N1N2/5P1p/7B/8

#2

8 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Sxd5#
  • Tries
    • 1.Sg6+?
      • 1...Kf6
        • 2.Be5#
      • 1...Kxd4!
    • 1.Rc1?
      • 1...Kd6
        • 2.Sg6#
      • 1...Kf6
        • 2.Sxd5#
      • 1...Kxd4!
    • 1.Rc2?
      • 1...Kd6
        • 2.Sg6#
      • 1...Kf6
        • 2.Sxd5#
      • 1...Kxd4!
    • 1.Rc4?
      • 1...Kd6
        • 2.Sg6#
      • 1...Kf6
        • 2.Sxd5#
      • 1...dxc4!
    • 1.Ra6?
      • 1...Kf6
        • 2.Sxd5#
      • 1...Kxd4!
    • 1.Rb6?
      • 1...Kf6
        • 2.Sxd5#
      • 1...Kxd4!
    • 1.Rc7?
      • 1...Kd6
        • 2.Sfe2#
        • 2.Sg2#
        • 2.Sd3#
        • 2.Sxh3#
        • 2.Sg6#
      • 1...Kf6
        • 2.Sxd5#
      • 1...Kxd4!
    • 1.Rc8?
      • 1...Kd6
        • 2.Sg6#
      • 1...Kf6
        • 2.Sxd5#
      • 1...Kxd4!
  • Keys
    • 1.Rc3!
      • 1...Kxd4
        • 2.Se2#
      • 1...Kd6
        • 2.Sg6#
      • 1...Kf6
        • 2.Sxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(D),XP(b)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(c);S_FLIGHT::B(A)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • R(F);
      • Vars
        • K(c);S_FLIGHT::B(A)+S(D)
        • K(c);S_FLIGHT::S(D),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • R(F);
      • Vars
        • K(c);S_FLIGHT::B(A)+S(D)
        • K(c);S_FLIGHT::S(D),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • R(F);
      • Vars
        • K(c);S_FLIGHT::B(A)+S(D)
        • K(c);S_FLIGHT::S(D),XP(b)
      • Refutation
        • P(b);XR(F)
    • Try
      • R(F);
      • Vars
        • K(c);S_FLIGHT::S(D),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • R(F);
      • Vars
        • K(c);S_FLIGHT::S(D),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • R(F);
      • Vars
        • K(c);S_FLIGHT::S(D),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • R(F);
      • Vars
        • K(c);S_FLIGHT::B(A)+S(D)
        • K(c);S_FLIGHT::S(D),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
  • Actual
    • R(F);
    • Vars
      • K(c);S_FLIGHT,XS(C)::S(D)
      • K(c);S_FLIGHT::B(A)+S(D)
      • K(c);S_FLIGHT::S(D),XP(b)
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