MESON Chess Problem Database

Problem Display
PID: 181097 (8/3N4/3R4/8/2p1k1K1/2p3n1/1R1P1P1b/4n3 w - - 0 1)

Berry, Charles Vincent E

Hampstead and Highgate Express, 1904

8/3N4/3R4/8/2p1k1K1/2p3n1/1R1P1P1b/4n3

#2

6 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.f3#
    • 1...Sg2
      • 2.f3#
    • 1...Sd3
      • 2.f3#
  • Tries
    • 1.Rb5?
      • threat
        • 2.Sf6#
        • 2.Re5#
      • 1...Sd3
        • 2.Sf6#
        • 2.f3#
      • 1...Sf3
        • 2.Sf6#
      • 1...Sf1
        • 2.Sf6#
      • 1...Sh1
        • 2.Sf6#
      • 1...Se2
        • 2.Sf6#
      • 1...Sf5
        • 2.Sf6#
      • 1...Sh5!
    • 1.d3+?
      • 1...cxd3
        • 2.Rb4#
      • 1...Sxd3!
    • 1.f4?
      • threat
        • 2.Sc5#
        • 2.Sf6#
      • 1...Bg1
        • 2.Sf6#
      • 1...Sd3
        • 2.Sf6#
      • 1...Sh5
        • 2.Sc5#
      • 1...cxd2!
  • Keys
    • 1.d4!
      • threat
        • 2.Sc5#
      • 1...Kd3
        • 2.Sc5#
      • 1...cxd4 ep
        • 2.Rb4#
      • 1...Sd3
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::P(C)
  • Tries
    • Try
      • R(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::S(F)
        • S(d);::S(F)
      • Refutation
        • S(d);
    • Try
      • P(B);CHECK
      • Vars
        • P(e);S_CUTS(a),XP(B)::R(A)
      • Refutation
        • S(a);XP(B)
    • Try
      • P(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);::S(F)
        • S(a);::S(F)
        • S(d);::S(F)
      • Refutation
        • P(c);XP(B)
  • Actual
    • P(B);
    • Threat
      • S(F)
    • Vars
      • K(f);S_FLIGHT::S(F)
      • P(e);EP,OGATEB,XP(B)::R(A)
      • S(a);SBLOCK::S(F)
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