MESON Chess Problem Database

Problem Display
PID: 107569 (3B4/4RN2/3n4/3r1n2/5k2/5P2/5PK1/7R w - - 0 1)

Admiral, AA

Manitoba Free Press, 1928

3B4/4RN2/3n4/3r1n2/5k2/5P2/5PK1/7R

#2

7 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Re4#
    • 1...Se4
      • 2.Rxe4#
    • 1...Sb5
      • 2.Re4#
    • 1...Sb7
      • 2.Re4#
    • 1...Sxf7
      • 2.Re4#
    • 1...Sc8
      • 2.Re4#
    • 1...Se8
      • 2.Re4#
  • Keys
    • 1.Re5!
      • threat
        • 2.Bg5#
      • 1...Se3+
        • 2.fxe3#
      • 1...Sh4+
        • 2.Rxh4#
      • 1...Sxf7
        • 2.Re4#
      • 1...Se7
        • 2.Rh4#
      • 1...Se4
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • S(d);N_GUARD::R1(E)
    • S(d);N_GUARD::R1(E),XS(d)
    • S(d);N_GUARD,XS(F)::R1(E)
  • Actual
    • R(E);
    • Threat
      • B(G)
    • Vars
      • S(c);CHECK,OGATE::P(B),XS(c)
      • S(c);CHECK,N_GUARD::R(A),XS(c)
      • S(d);N_GUARD,XS(F)::R1(E)
      • S(c);N_GUARD::R(A)
      • S(d);N_GUARD::R1(E),XS(d)
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