MESON Chess Problem Database

Problem Display
PID: 224607 (3r2b1/rN1n4/4R3/2bP4/2k5/n2R4/2N5/4BB1K w - - 0 1)

Laws, Benjamin Glover

Nashville Daily American, 1888

3r2b1/rN1n4/4R3/2bP4/2k5/n2R4/2N5/4BB1K

#2

8 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kb5
      • 2.Rxa3#
  • Tries
    • 1.Se3+?
      • 1...Kb5
        • 2.Rxa3#
      • 1...Bxe3!
    • 1.Sa5+?
      • 1...Kb5
        • 2.Rxa3#
      • 1...Rxa5!
    • 1.Re4+?
      • 1...Kb5
        • 2.Rb3#
      • 1...Bd4!
  • Keys
    • 1.Rc6!
      • threat
        • 2.Sd6#
      • 1...Bxd5+
        • 2.Rf3#
      • 1...Kb5
        • 2.Rxa3#
      • 1...Rxb7
        • 2.Sxa3#
      • 1...Sb5
        • 2.Se3#
      • 1...Se5
        • 2.Rxc5#
      • 1...Sb6
        • 2.Rxc5#
      • 1...Sf6
        • 2.Rxc5#
      • 1...Sb8
        • 2.Rxc5#
      • 1...Sf8
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(B)+R(E),XS(a)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);S_FLIGHT::B(B)+R(E),XS(a)
      • Refutation
        • B(c);XS(D)
    • Try
      • S(H);CHECK
      • Vars
        • K(b);S_FLIGHT::B(B)+R(E),XS(a)
      • Refutation
        • R(d);XS(H)
    • Try
      • R(G);CHECK
      • Vars
        • K(b);S_FLIGHT::B(B)+R(E),DCHECK
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • R(G);P_PINB(c)
    • Threat
      • S(H)
    • Vars
      • B(g);CHECK,SBLOCK,XP(F)::B(B)+R(E)
      • K(b);N_SPINB(c),S_FLIGHT::B(B)+R(E),XS(a)
      • R(d);N_GUARD,XS(H)::S(D),XS(a)
      • S(a);SBLOCK::S(D)
      • S(e);N_GUARD::R1(G),XB(c)
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