MESON Chess Problem Database

Problem Display
PID: 121349 (3K4/1Q6/pN2p3/k7/2p5/Nb1p4/r7/8 w - - 0 1)

Cumpe, Josef

Sokolske besedy, 1931

3K4/1Q6/pN2p3/k7/2p5/Nb1p4/r7/8

#2

4 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Sbxc4#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Qb4#
      • 1...Ka4
        • 2.Qxa6#
        • 2.Qb4#
      • 1...exd5!
    • 1.Qc7?
      • threat
        • 2.Qc5#
      • 1...Ba4
        • 2.Sd5#
      • 1...Kb4!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qc5#
      • 1...Kxb6
        • 2.Qc7#
      • 1...Ba4
        • 2.Sbxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD,SBLOCK::S(B),XP(d)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB1(C)
      • Refutation
        • P(g);XS(B)
    • Try
      • Q(C);
      • Threat
        • QAR2(C)
      • Vars
        • B(b);SBLOCK::QAB(C)+S(B)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR2(C)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XS(B)::QAB1(C)
      • B(b);N_GUARD,SBLOCK::S(B),XP(d)
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