MESON Chess Problem Database

Problem Display
PID: 224308 (2r5/2R3B1/3N3R/n2k4/B2P4/2p3p1/4n3/4K3 w - - 0 1)

Rockwell, Almon Ferdinand

Brownson's Chess Journal, 1887

2r5/2R3B1/3N3R/n2k4/B2P4/2p3p1/4n3/4K3

#2

7 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Rc5#
    • 1...Rb8
      • 2.Rc5#
    • 1...Rd8
      • 2.Rc5#
    • 1...Re8
      • 2.Rc5#
    • 1...Rf8
      • 2.Rc5#
    • 1...Rg8
      • 2.Rc5#
    • 1...Rh8
      • 2.Rc5#
    • 1...Sb3
      • 2.Bxb3#
      • 2.Bc6#
    • 1...Sc4
      • 2.Bc6#
    • 1...Sc6
      • 2.Bb3#
      • 2.Bxc6#
    • 1...Sb7
      • 2.Bb3#
      • 2.Bc6#
  • Tries
    • 1.Bb3+?
      • 1...Sc4
        • 2.Bxc4#
      • 1...Sxb3!
    • 1.Rxc8?
      • threat
        • 2.Rc5#
      • 1...Sb3
        • 2.Bxb3#
        • 2.Bc6#
      • 1...Sc6
        • 2.Bb3#
        • 2.Bxc6#
      • 1...Sb7
        • 2.Bb3#
        • 2.Bc6#
      • 1...Sxd4!
  • Keys
    • 1.Bc2!
      • threat
        • 2.Be4#
      • 1...Re8
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • R(f);N_GUARD::R1(F)
    • S(d);N_GUARD::B(B)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::B(B),XS(d)
      • Refutation
        • S(d);XB(B)
    • Try
      • R(F);XR(f)
      • Threat
        • R1(F)
      • Refutation
        • S(a);XP(C)
  • Actual
    • B(B);
    • Threat
      • B(B)
    • Vars
      • R(f);N_GUARD::R1(F)
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