MESON Chess Problem Database

Problem Display
PID: 221608 (3R1R2/2p1p1p1/2p1k1p1/Q1B1b1P1/3p1p2/K2P1P2/4N3/8 w - - 0 1)

Erokhin, Vladimir Alekseevich

Suomen Shakki, 1980

3R1R2/2p1p1p1/2p1k1p1/Q1B1b1P1/3p1p2/K2P1P2/4N3/8

#2

9 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bb4?
      • 1...Bd6
        • 2.Sxd4#
      • 1...Bf6
        • 2.Sxf4#
      • 1...c5!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Sxd4#
        • 2.Sxf4#
      • 1...Bd6
        • 2.Sxf4#
      • 1...Bf6
        • 2.Sxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);
      • Vars
        • B(c);N_GUARD,P_PINB(F)::S(A),XP(a)
        • B(c);N_GUARD::S(A),XP(b)
      • Refutation
        • P(d);
  • Actual
    • Q(E);
    • Threat
      • DUALS(2)
    • Vars
      • B(c);P_PINB(F)::QAR(E)+S(A),DCHECK,XP(b)
      • B(c);::QAR(E)+S(A),DCHECK,XP(a)
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