MESON Chess Problem Database

Problem Display
PID: 146407 (2K5/5N2/n3p3/1P1kP3/2NB3Q/r3p3/pp1bB3/1br5 w - - 0 1)

Geach, S

Sunday Illustrated, 1922

2K5/5N2/n3p3/1P1kP3/2NB3Q/r3p3/pp1bB3/1br5

#2

8 + 10

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sb6#
    • 1...Re1
      • 2.Sb6#
    • 1...Rf1
      • 2.Sb6#
    • 1...Rg1
      • 2.Sb6#
    • 1...Rh1
      • 2.Sb6#
    • 1...Bc2
      • 2.Sb6#
    • 1...Be4
      • 2.Qd8#
    • 1...Bc3
      • 2.Sxe3#
      • 2.Sb6#
    • 1...Sc5
      • 2.Sb6#
    • 1...Sc7
      • 2.Sb6#
  • Tries
    • 1.Bb6?
      • threat
        • 2.Qd4#
      • 1...Rxc4+
        • 2.Bxc4#
        • 2.Qxc4#
      • 1...Rd3
        • 2.Bf3#
      • 1...Be4
        • 2.Qd8#
      • 1...Bc3
        • 2.Sxe3#
      • 1...Sc5!
  • Keys
    • 1.Ba7!
      • threat
        • 2.Qd4#
      • 1...Rxc4+
        • 2.Bxc4#
        • 2.Qxc4#
      • 1...Rd3
        • 2.Bf3#
      • 1...Be4
        • 2.Qd8#
      • 1...Bc3
        • 2.Sxe3#
      • 1...Sc5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(b);N_PINS(B)::S(B)
    • B(a);N_PINS(B)::S(B)
    • B(a);SBLOCK::QAR(D)
    • S(i);N_PINS(B)::S(B)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR1(D)
      • Vars
        • R(f);S_CUTB(a)::B(A)
        • B(a);SBLOCK::QAR(D)
        • B(e);N_PINS(B)::S(B),XP(g)
      • Refutation
        • S(i);N_PINS(B)
  • Actual
    • B(C);
    • Threat
      • QAR1(D)
    • Vars
      • R(f);S_CUTB(a)::B(A)
      • B(a);SBLOCK::QAR(D)
      • B(e);N_PINS(B)::S(B),XP(g)
      • S(i);N_PINS(B),SBLOCK::S(B)
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