MESON Chess Problem Database

Problem Display
PID: 163838 (3B3q/1r5b/2B1Rp2/1p5r/1P1k1PN1/7p/1NR5/1n2K3 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Novi Temi, 1974

3B3q/1r5b/2B1Rp2/1p5r/1P1k1PN1/7p/1NR5/1n2K3

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rh4
      • 2.Rd6#
    • 1...Rf5
      • 2.Re4#
    • 1...Rh6
      • 2.Rd6#
    • 1...Be4
      • 2.Rxe4#
    • 1...Bf5
      • 2.Rd6#
    • 1...Bg8
      • 2.Re4#
    • 1...f5
      • 2.Rd6#
  • Tries
    • 1.Bb6+?
      • 1...Rc5
        • 2.Bxc5#
        • 2.Rd6#
      • 1...Rxb6!
  • Keys
    • 1.f5!
      • threat
        • 2.Re4#
        • 2.Rd6#
      • 1...Qxd8
        • 2.Re4#
      • 1...Rxf5
        • 2.Re4#
      • 1...Bxf5
        • 2.Rd6#
      • 1...Qe8
        • 2.Bxf6#
      • 1...Qf8
        • 2.Re4#
      • 1...Qg8
        • 2.Bxf6#
        • 2.Re4#
      • 1...Rd7
        • 2.Bb6#
        • 2.Re4#
      • 1...Re7
        • 2.Bb6#
      • 1...Bg8
        • 2.Re4#
      • 1...Sd2
        • 2.Rd6#
      • 1...Sc3
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • R(e);N_GUARD::R(H)
    • R(e);S_CUTB(h)::R1(H)
    • B(h);N_GUARD::R1(H),XB(h)
    • B(h);S_CUTR(e)::R(H)
    • B(h);N_GUARD::R1(H)
    • P(f);S_CUTR(e)::R(H)
  • Tries
    • Try
      • B(I);CHECK
      • Refutation
        • R(g);XB(I)
  • Actual
    • P(E);
    • Threat
      • DUALS(2)
    • Vars
      • Q(i);XB(I)::R1(H)
      • R(e);XP(E)::R1(H)
      • B(h);XP(E)::R(H)
      • Q(i);N_GUARD,P_PINR(H)::B(I),XP(f)
      • Q(i);::R1(H)
      • R(g);N_GUARD,P_PINR(H)::B(I)
      • B(h);::R1(H)
      • S(a);::R(H)
      • S(a);N_GUARD,SBLOCK::R(C)
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