MESON Chess Problem Database

Problem Display
PID: 219215 (7b/7Q/2pp1p2/3P4/1N1kp3/BPpNp3/4B3/n6K w - - 0 1)

Green, S (= Laws, BG)

British Chess Magazine, 1923

7b/7Q/2pp1p2/3P4/1N1kp3/BPpNp3/4B3/n6K

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...c2
      • 2.Bb2#
    • 1...cxd5
      • 2.Sc6#
      • 2.Qa7#
    • 1...f5
      • 2.Qxh8#
  • Tries
    • 1.Sc2+?
      • 1...Kxd5
        • 2.Qf5#
        • 2.Qg8#
        • 2.Qf7#
      • 1...Sxc2!
    • 1.Qf5?
      • threat
        • 2.Sxc6#
      • 1...cxd5
        • 2.Sc6#
        • 2.Qxd5#
      • 1...c2
        • 2.Bb2#
      • 1...c5
        • 2.Sc6#
      • 1...Sxb3!
  • Keys
    • 1.Bf3!
      • threat
        • 2.Qxe4#
      • 1...exd3
        • 2.Sxc6#
      • 1...exf3
        • 2.Qh4#
      • 1...cxd5
        • 2.Qa7#
      • 1...c2
        • 2.Bb2#
      • 1...f5
        • 2.Qxh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB::B(C)
    • P(h);OGATEB::QAB(H),XB(i)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • S(a);XS(F)
    • Try
      • Q(H);
      • Threat
        • S(F),XP(f)
      • Vars
        • P(b);OGATEB::B(C)
        • P(f);::S(F)
      • Refutation
        • S(a);XP(D)
  • Actual
    • B(B);
    • Threat
      • QAR1(H),XP(e)
    • Vars
      • P(e);XS(E)::S(F),XP(f)
      • P(e);OGATEB,XB(B)::QAR(H)
      • P(f);N_GUARD,XP(G)::QAB(H)
      • P(b);OGATEB::B(C)
      • P(h);OGATEB::QAB(H),XB(i)
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