MESON Chess Problem Database

Problem Display
PID: 24316 (1R6/8/8/2Nb2K1/1np3R1/2k5/2Nr4/1BB5 w - - 0 1)

Nestorescu, Virgil

1st Prize, Match: Czechoslovakia - Hungary - Poland - Romania, 1950

1R6/8/8/2Nb2K1/1np3R1/2k5/2Nr4/1BB5

#2

7 + 5

3105 FIDE Album (1945-1955) 1964
3310 2345 Chess Problems 1997
4764 Probleme si studii alese 1999
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Bb2#
    • 1...Sxc2
      • 2.Bb2#
    • 1...Sd3
      • 2.Sa4#
    • 1...Sa6
      • 2.Bb2#
    • 1...Sc6
      • 2.Bb2#
  • Tries
    • 1.Sa4+?
      • 1...Kb3
        • 2.Rxb4#
      • 1...Kd3!
    • 1.Bxd2+?
      • 1...Kb2
        • 2.Rxb4#
      • 1...Kxd2!
  • Keys
    • 1.Sa3!
      • threat
        • 2.Sb5#
      • 1...Bc6
        • 2.Rxc4#
      • 1...Sa2
        • 2.Sa4#
      • 1...Sc2
        • 2.Bb2#
      • 1...Sd3
        • 2.Sa4#
      • 1...Sa6
        • 2.Sa4#
      • 1...Sc6
        • 2.Sa4#

This anticipates 171249(1972)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(c);::B(B)
    • S(c);XS(C)::B(B)
    • S(c);SBLOCK::S(E)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINS(c)::R1(G),XS(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(B);CHECK,XR(a)
      • Vars
        • K(b);P_SPINS(c),S_FLIGHT::R(G),XS(c)
      • Refutation
        • K(b);S_FLIGHT,XB(B)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • B(e);N_GUARD::R1(D),XP(d)
      • S(c);::S(E)
      • S(c);S_CUTR(a)::B(B)
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