MESON Chess Problem Database

Problem Display
PID: 202378 (K7/3B4/3B4/1N1k4/p3R1P1/rn1p2N1/8/7b w - - 0 1)

Sabena, V

L'Italia Scacchistica, 1923

K7/3B4/3B4/1N1k4/p3R1P1/rn1p2N1/8/7b

#2

7 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Rd4#
    • 1...Sc1
      • 2.Rd4#
    • 1...Sd2
      • 2.Rd4#
    • 1...Sd4
      • 2.Rxd4#
    • 1...Sa5
      • 2.Rd4#
    • 1...Sc5
      • 2.Rd4#
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sc3#
      • 1...Kxe4
        • 2.Bc6#
      • 1...Bxe4
        • 2.Se3#
      • 1...Sd4
        • 2.Rxd4#
      • 1...Sa1
        • 2.Rd4#
      • 1...Sc1
        • 2.Rd4#
      • 1...Sd2
        • 2.Rd4#
      • 1...Sa5
        • 2.Rd4#
      • 1...Sc5
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::R1(B)
    • S(c);N_GUARD::R1(B),XS(c)
  • Actual
    • S(A);
    • Threat
      • S(D)
    • Vars
      • K(f);S_FLIGHT,XR(B)::B(F)
      • B(a);SBLOCK,XR(B)::S(A)
      • S(c);N_GUARD::R1(B),XS(c)
      • S(c);N_GUARD::R1(B)
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