MESON Chess Problem Database

Problem Display
PID: 109538 (8/2p5/2Bk1P2/5P2/p2N4/2BKN3/2Q5/8 w - - 0 1)

Chernyavsky, Mykola Vasilovich

Northwest Chess, 1978

8/2p5/2Bk1P2/5P2/p2N4/2BKN3/2Q5/8

#2

8 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5?
      • 1...Kc5
        • 2.Bb4#
      • 1...Ke5
        • 2.Qh2#
      • 1...a3!
    • 1.Sb5+?
      • 1...Kc5
        • 2.Ba5#
      • 1...Kxc6!
  • Keys
    • 1.Qxa4!
      • 1...Kc5
        • 2.Qb4#
      • 1...Ke5
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);S_FLIGHT::QAR(A)+B(B),DCHECK
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • P(a);
    • Try
      • S(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR(A)+B(B)
      • Refutation
        • K(b);P-FLIGHT,XB(G)
  • Actual
    • Q(A);XP(a)
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);S_FLIGHT::B(B)+S(E)
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