MESON Chess Problem Database

Problem Display
PID: 46665 (5K2/3BQ1P1/3PNB2/4N1P1/3Pkp2/1P1pb3/1P4R1/4R3 w - - 0 1)

Oitean, Gligor

8th HM., The Problemist, 1999/II

5K2/3BQ1P1/3PNB2/4N1P1/3Pkp2/1P1pb3/1P4R1/4R3

#2

14 + 4

56 The Problemist 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Bc6#
    • 1...Kf5
      • 2.Sc5#
  • Tries
    • 1.Sg6?
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd5
        • 2.Sc7#
      • 1...Kf5
        • 2.Sexf4#
      • 1...f3
        • 2.Sef4#
        • 2.Sc7#
      • 1...d2!
    • 1.Sxf4?
      • 1...Kxd4
        • 2.Sexd3#
      • 1...Kxf4
        • 2.Rg4#
      • 1...d2!
    • 1.Rd2?
      • 1...Kd5
        • 2.Bc6#
      • 1...Kf5
        • 2.Sc5#
      • 1...f3!
    • 1.Rg4?
      • 1...Kd5
        • 2.Bc6#
      • 1...Kf5
        • 2.Sc5#
      • 1...d2!
  • Keys
    • 1.Sxd3!
      • 1...Kxd3
        • 2.Sc5#
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd5
        • 2.Sc7#
      • 1...Kf5
        • 2.Sexf4#
      • 1...f3
        • 2.Sef4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINB(b),S_FLIGHT::B(K)
    • K(c);N_SPINB(b),S_FLIGHT::B(K)+S(I)
  • Tries
    • Try
      • S(F);
      • Vars
        • K(c);N_SPINB(b),S_FLIGHT::B(K)
        • K(c);N_SPINB(b),S_FLIGHT::S(I)
        • K(c);N_SPINB(b),S_FLIGHT::B(K)+S(I),XP(d)
      • Refutation
        • P(a);
    • Try
      • S(I);XP(d)
      • Vars
        • K(c);N_SPINB(b),P-FLIGHT,XP(E)::B(J)+S(F),XP(a)
        • K(c);N_SPINB(b),OGATEB,P-FLIGHT,XS(I)::R1(C)
      • Refutation
        • P(a);
    • Try
      • R(C);
      • Vars
        • K(c);N_SPINB(b),S_FLIGHT::B(K)
        • K(c);N_SPINB(b),S_FLIGHT::B(K)+S(I)
      • Refutation
        • P(d);
    • Try
      • R(C);P_PINP(d)
      • Vars
        • K(c);N_SPINB(b),N_SPINP(d),S_FLIGHT::B(K)
        • K(c);N_SPINB(b),N_SPINP(d),S_FLIGHT::B(K)+S(I)
      • Refutation
        • P(a);
  • Actual
    • S(F);XP(a)
    • Vars
      • K(c);N_SPINB(b),S_FLIGHT,XS(F)::S(I)
      • K(c);N_SPINB(b),S_FLIGHT::B(K)
      • K(c);N_SPINB(b),S_FLIGHT::S(I)
      • K(c);N_SPINB(b),S_FLIGHT::B(K)+S(I),XP(d)
      • P(d);SBLOCK::QAR(L)+S(I)
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