MESON Chess Problem Database

Problem Display
PID: 233417 (5n1r/K4n2/p2p4/r1R1pN1p/5kpB/3Q1bp1/3P1P2/4q3 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Freie Presse, 1973

5n1r/K4n2/p2p4/r1R1pN1p/5kpB/3Q1bp1/3P1P2/4q3

#2

7 + 13

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd2
      • 2.fxg3#
    • 1...Qa1
      • 2.fxg3#
    • 1...Qb1
      • 2.fxg3#
    • 1...Qc1
      • 2.fxg3#
    • 1...Qd1
      • 2.fxg3#
    • 1...Qf1
      • 2.fxg3#
    • 1...Qh1
      • 2.fxg3#
    • 1...Qe2
      • 2.fxg3#
    • 1...Qe3
      • 2.dxe3#
      • 2.fxe3#
      • 2.fxg3#
    • 1...Sg5
      • 2.Bxg3#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Qf5#
      • 1...Qb1
        • 2.Qe3#
        • 2.fxg3#
      • 1...Qe4
        • 2.fxg3#
      • 1...Be4
        • 2.Qxg3#
      • 1...e4
        • 2.Bxg3#
      • 1...Sh6!
    • 1.Se7?
      • threat
        • 2.Qf5#
      • 1...Qb1
        • 2.Qe3#
        • 2.fxg3#
      • 1...Qe4
        • 2.fxg3#
      • 1...Be4
        • 2.Qxg3#
      • 1...e4
        • 2.Bxg3#
      • 1...Sh6!
  • Keys
    • 1.Sg7!
      • threat
        • 2.Qf5#
      • 1...Sh6
        • 2.Sxh5#
      • 1...Qb1
        • 2.Qe3#
        • 2.fxg3#
      • 1...Qe4
        • 2.fxg3#
      • 1...Be4
        • 2.Qxg3#
      • 1...e4
        • 2.Bxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 9
  • Sets
    • Q(a);N_GUARD,XP(A)::P(B),XP(c)
    • Q(a);N_GUARD::P(B),XP(c)
    • S(k);SBLOCK::B(D),XP(c)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(C)
      • Vars
        • Q(a);N_GUARD::P(B),XP(c)
        • B(b);OGATE,SBLOCK::QAB1(C),XP(c)
        • P(g);::B(D),XP(c)
      • Refutation
        • S(k);
    • Try
      • S(F);
      • Threat
        • QAR1(C)
      • Vars
        • Q(a);N_GUARD::P(B),XP(c)
        • B(b);OGATE,SBLOCK::QAB1(C),XP(c)
        • P(g);::B(D),XP(c)
      • Refutation
        • S(k);
  • Actual
    • S(F);
    • Threat
      • QAR1(C)
    • Vars
      • S(k);S_CUTR(m)::S(F),XP(h)
      • Q(a);N_GUARD::P(B),XP(c)
      • B(b);OGATE,SBLOCK::QAB1(C),XP(c)
      • P(g);::B(D),XP(c)
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