MESON Chess Problem Database

Problem Display
PID: 259699 (2N2r2/1QnR4/2n3B1/2p1pp2/2k5/1pN5/1B1K4/8 w - - 0 1)

Fazylov, D

Pravda Vostoka, 1950

(First published on Sat May 27 1950)

2N2r2/1QnR4/2n3B1/2p1pp2/2k5/1pN5/1B1K4/8

#2

7 + 8

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Sb6#
    • 1...Sd4
      • 2.Sd6#
    • 1...Sb5
      • 2.Qxb5#
    • 1...Sa6
      • 2.Qb5#
    • 1...Se6
      • 2.Qb5#
    • 1...Sa8
      • 2.Qb5#
    • 1...Se8
      • 2.Qb5#
    • 1...f4
      • 2.Bd3#
  • Tries
    • 1.Sd1?
      • threat
        • 2.Se3#
      • 1...Sd5
        • 2.Sd6#
      • 1...f4
        • 2.Bd3#
      • 1...Sb5!
    • 1.Bh5?
      • threat
        • 2.Be2#
      • 1...Sb5
        • 2.Qxb5#
      • 1...Sb4
        • 2.Sb6#
      • 1...Sd4
        • 2.Sd6#
      • 1...Sd5!
    • 1.Qa6+?
      • 1...Kb4
        • 2.Ba3#
        • 2.Qa4#
      • 1...Sb5
        • 2.Qxb5#
      • 1...Sxa6!
    • 1.Qxc6?
      • threat
        • 2.Qa4#
      • 1...Kb4
        • 2.Qa4#
      • 1...Sb5
        • 2.Qxb5#
      • 1...Sa6
        • 2.Qb5#
      • 1...Sd5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Se3#
      • 1...Sxd5
        • 2.Sd6#
      • 1...Sb5
        • 2.Scb6#
      • 1...f4
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • S(f);SBLOCK::S(G)
    • S(g);N_GUARD::QAB1(E),XS(g)
    • S(g);N_GUARD::QAB1(E)
    • P(e);OGATE::B(D)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • S(g);SBLOCK::S(G)
        • P(e);OGATE::B(D)
      • Refutation
        • S(g);
    • Try
      • B(D);
      • Threat
        • B(D)
      • Vars
        • S(g);N_GUARD::QAB1(E),XS(g)
        • S(f);SBLOCK::S(G)
      • Refutation
        • S(g);
    • Try
      • Q(E);CHECK
      • Vars
        • S(g);N_GUARD,P_SPINS(g)::QAB1(E),XS(g)
      • Refutation
        • S(g);XQ(E)
    • Try
      • Q(E);P_PINP(c),XS(f)
      • Threat
        • QAR2(E)
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::QAR1(E)
        • S(g);N_GUARD::QAB1(E),XS(g)
        • S(g);N_GUARD::QAB1(E)
      • Refutation
        • S(g);
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • S(g);SBLOCK,XS(C)::S(G)
      • S(g);SBLOCK::S(G)
      • P(e);OGATE::B(D)
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