MESON Chess Problem Database

Problem Display
PID: 86641 (6r1/3p1q1B/3B3n/3pR2b/N1pkN3/3PR3/pr6/Kn4Q1 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Canadian Chess Chat, 1982

6r1/3p1q1B/3B3n/3pR2b/N1pkN3/3PR3/pr6/Kn4Q1

#2

9 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sec3?
      • threat
        • 2.Bc5#
      • 1...cxd3
        • 2.R3e4#
      • 1...Qe7
        • 2.Rxd5#
      • 1...Qf8
        • 2.Rxd5#
      • 1...Rb5
        • 2.Sxb5#
      • 1...Rc8!
    • 1.Rf3+?
      • 1...Rf2
        • 2.Qxf2#
      • 1...Rxg1!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Bc5#
      • 1...cxd3
        • 2.R3e4#
      • 1...Qf8
        • 2.Rxd5#
      • 1...Qe7
        • 2.Rxd5#
      • 1...Rb5
        • 2.Rg3#
      • 1...Rc8
        • 2.Re2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • B(H)
      • Vars
        • P(d);SBLOCK,XP(C)::QAB(B)+R(D),DCHECK
        • Q(j);N_GUARD::R1(G),XP(f)
        • R(c);N_GUARD::S(F),XR(c)
      • Refutation
        • R(k);
    • Try
      • R(D);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAB(B),XR(c)
      • Refutation
        • R(k);XQ(B)
  • Actual
    • S(F);
    • Threat
      • B(H)
    • Vars
      • P(d);SBLOCK,XP(C)::QAB(B)+R(D),DCHECK
      • Q(j);N_GUARD::R1(G),XP(f)
      • R(c);N_GUARD::QAB(B)+R(D)
      • R(k);N_GUARD::QAB(B)+R(D)
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