MESON Chess Problem Database

Problem Display
PID: 52173 (b7/4K2B/4R3/Bnpkp3/8/1N6/5N2/8 w - - 0 1)

Anonymous

Chess Amateur (The), 1908

b7/4K2B/4R3/Bnpkp3/8/1N6/5N2/8

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Be4#
  • Tries
    • 1.Bg8?
      • threat
        • 2.Ra6#
        • 2.Rb6#
        • 2.Rd6#
        • 2.Rf6#
        • 2.Rg6#
        • 2.Rh6#
      • 1...Kc4
        • 2.Rc6#
      • 1...Sd6
        • 2.Rxd6#
      • 1...Bc6
        • 2.Rd6#
        • 2.Rf6#
        • 2.Rg6#
        • 2.Rh6#
      • 1...Sd4
        • 2.Rd6#
      • 1...Sc7
        • 2.Rd6#
      • 1...e4!
    • 1.Rd6+?
      • 1...Kc4
        • 2.Sd2#
      • 1...Sxd6!
  • Keys
    • 1.Rc6!
      • threat
        • 2.Rxc5#
      • 1...Kc4
        • 2.Bg8#
      • 1...Kxc6
        • 2.Be4#
      • 1...Bxc6
        • 2.Bg8#
      • 1...c4
        • 2.Be4#
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(b);SBLOCK::B(F)
  • Tries
    • Try
      • B(F);
      • Threat
        • DUALS(6)
      • Vars
        • K(c);S_FLIGHT::B(F)+R(D)
        • S(a);::B(F)+R(D),DCHECK,XS(a)
        • S(a);::B(F)+R(D),DCHECK
      • Refutation
        • P(d);
    • Try
      • R(D);CHECK
      • Vars
        • K(c);S_FLIGHT::S(B)
      • Refutation
        • S(a);XR(D)
  • Actual
    • R(D);
    • Threat
      • R1(D),XP(b)
    • Vars
      • K(c);P_SPINP(b),S_FLIGHT::B(F)
      • K(c);S_FLIGHT,XR(D)::B(F)
      • B(e);SBLOCK,XR(D)::B(F)
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