MESON Chess Problem Database

Problem Display
PID: 233416 (3R4/b1N5/4R3/qr4p1/2P2kB1/rn4pK/b7/6B1 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Freie Presse, 1973

3R4/b1N5/4R3/qr4p1/2P2kB1/rn4pK/b7/6B1

#2

7 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Be3#
    • 1...Rb6
      • 2.Be3#
    • 1...Be3
      • 2.Bxe3#
    • 1...Bc5
      • 2.Sd5#
    • 1...Bb8
      • 2.Be3#
    • 1...Sc5
      • 2.Sd5#
      • 2.Rf8#
    • 1...g2
      • 2.Bh2#
  • Keys
    • 1.c5!
      • threat
        • 2.Sd5#
        • 2.Be3#
        • 2.Rf8#
      • 1...Qxc7
        • 2.Be3#
      • 1...Rxc5
        • 2.Be3#
      • 1...Bxc5
        • 2.Sd5#
      • 1...Sxc5
        • 2.Rf8#
      • 1...Qe1
        • 2.Sd5#
        • 2.Rf8#
      • 1...Qd2
        • 2.Rf8#
      • 1...Qc3
        • 2.Sd5#
      • 1...Rb8
        • 2.Sd5#
        • 2.Be3#
      • 1...Bb1
        • 2.Sd5#
        • 2.Be3#
      • 1...Sa1
        • 2.Rd4#
        • 2.Rf8#
      • 1...Sc1
        • 2.Rd4#
        • 2.Rf8#
      • 1...Sd2
        • 2.Rf8#
      • 1...Sd4
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • R(g);S_CUTB(i)::B(A)
    • B(i);N_GUARD::B(A),XB(i)
    • B(i);S_CUTR(g)::S(F)
    • B(i);N_GUARD::B(A)
    • P(d);OGATEB::B(A)
  • Actual
    • P(C);
    • Threat
      • DUALS(3)
    • Vars
      • Q(f);XS(F)::B(A)
      • R(g);XP(C)::B(A)
      • B(i);XP(C)::S(F)
      • S(c);XP(C)::R(G)
      • Q(f);::R(G)
      • Q(f);::S(F)
      • S(c);::R(G)
      • S(c);N_GUARD::R(G),XS(c)
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