MESON Chess Problem Database

Problem Display
PID: 56297 (1rn1Nn2/Bp4Np/2P4r/3kp3/2R3P1/8/B7/1K5b w - - 0 1)

Ellerman, Arnoldo

1st HM., Brisbane Courier, 1916

1rn1Nn2/Bp4Np/2P4r/3kp3/2R3P1/8/B7/1K5b

#2

8 + 9

133 The Problemist Supplement 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc6
      • 2.Rd4#
    • 1...Rd6
      • 2.Sc7#
    • 1...Be4+
      • 2.Rc2#
    • 1...Sd6
      • 2.Sc7#
    • 1...bxc6+
      • 2.Rb4#
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sc7#
      • 1...Be4+
        • 2.Rc2#
      • 1...bxc6+
        • 2.Rb4#
      • 1...Ke6
        • 2.Re4#
      • 1...Rxc6
        • 2.Rd4#
      • 1...e4
        • 2.Rc5#
      • 1...Se6
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(d);SBLOCK,XP(E)::B(B)+R(C),DCHECK
    • R(d);SBLOCK::S(H)
    • B(a);CHECK,SBLOCK::B(B)+R(C)
    • S(h);SBLOCK::S(H)
    • P(e);CHECK,SBLOCK,XP(E)::B(B)+R(C)
  • Actual
    • S(G);
    • Threat
      • S(H)
    • Vars
      • B(a);CHECK,SBLOCK::B(B)+R(C)
      • P(e);CHECK,SBLOCK,XP(E)::B(B)+R(C)
      • K(b);S_FLIGHT::B(B)+R(C)
      • R(d);SBLOCK,XP(E)::B(B)+R(C),DCHECK
      • P(c);SBLOCK::B(B)+R(C),DCHECK
      • S(i);SBLOCK::S(G)
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