MESON Chess Problem Database

Problem Display
PID: 138173 (8/4p1K1/8/R3pknQ/BN6/B1p2n2/6N1/3b1R2 w - - 0 1)

Nesic, Milivoj S

Leninskaya Smena, 1965

8/4p1K1/8/R3pknQ/BN6/B1p2n2/6N1/3b1R2

#2

8 + 7

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qg4#
    • 1...Ke6
      • 2.Qg6#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Rxe5#
      • 1...Ke6
        • 2.Qg4#
        • 2.Qg6#
      • 1...Ke4!
    • 1.Bd7+?
      • 1...Ke4
        • 2.Qg4#
      • 1...e6!
    • 1.Rxf3+?
      • 1...Ke4
        • 2.Qg4#
      • 1...Ke6
        • 2.Ra6#
        • 2.Qg6#
        • 2.Qh6#
      • 1...Bxf3!
    • 1.Qh3+?
      • 1...Ke4
        • 2.Qg4#
      • 1...Sxh3!
    • 1.Qxg5+?
      • 1...Ke4
        • 2.Qg4#
      • 1...Ke6
        • 2.Ra6#
        • 2.Qg6#
      • 1...Kxg5!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Rxe5#
      • 1...Ke4
        • 2.Qg6#
      • 1...Ke6
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(e);N_SPINP(d),N_SPINS(c),S_FLIGHT::QAR2(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • R1(F),XP(d)
      • Refutation
        • K(e);N_SPINP(d),N_SPINS(c),S_FLIGHT
    • Try
      • B(D);CHECK
      • Vars
        • K(e);N_SPINP(d),N_SPINS(c),S_FLIGHT::QAR2(G)
      • Refutation
        • P(g);
    • Try
      • R(A);CHECK,P_PINS(f),XS(c)
      • Vars
        • K(e);N_SPINP(d),N_SPINS(f),S_FLIGHT::QAR2(G)
      • Refutation
        • B(a);XR(A)
    • Try
      • Q(G);CHECK
      • Vars
        • K(e);N_SPINP(d),N_SPINS(c),S_FLIGHT::QAR2(G)
      • Refutation
        • S(f);XQ(G)
    • Try
      • Q(G);CHECK,XS(f)
      • Vars
        • K(e);N_SPINP(d),N_SPINS(c),S_FLIGHT::QAR2(G)
      • Refutation
        • K(e);N_SPINS(c),P-FLIGHT,XQ(G)
  • Actual
    • S(E);
    • Threat
      • R1(F),XP(d)
    • Vars
      • K(e);N_SPINP(d),N_SPINS(c),S_FLIGHT::QAB(G)
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