MESON Chess Problem Database

Problem Display
PID: 142425 (b6K/2n5/2p2N2/1P6/2knN2R/1R1pP3/B2P4/b7 w - - 0 1)

Melvin, Herbert A ('Hamel' or Zaak, HA)

Stratford Express, 1946

(First published on Fri Nov 1 1946)

b6K/2n5/2p2N2/1P6/2knN2R/1R1pP3/B2P4/b7

#2

9 + 7

14867 BCPS Library 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Rb1#
      • 2.Rb2#
    • 1...Se2
      • 2.Rb1#
      • 2.Rb2#
    • 1...Sf3
      • 2.Rb1#
      • 2.Rb2#
    • 1...Sdxb5
      • 2.Rb1#
      • 2.Rb2#
    • 1...Sf5
      • 2.Rb1#
      • 2.Rb2#
    • 1...Sde6
      • 2.Rb1#
      • 2.Rb2#
    • 1...c5
      • 2.Sd6#
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sb6#
      • 1...Sc2+
        • 2.Rb2#
      • 1...Se2+
        • 2.Rb2#
      • 1...Sxb3+
        • 2.Sc3#
      • 1...Sf3+
        • 2.Rb2#
      • 1...Sdxb5+
        • 2.Rb2#
      • 1...Sf5+
        • 2.Rb2#
      • 1...Sde6+
        • 2.Rb2#
      • 1...Kd5
        • 2.Rxd3#
      • 1...Sd5
        • 2.Sd6#
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • P(e);SBLOCK::S(E)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • S(d);CHECK,N_GUARD::B(A)+R(C)
      • S(d);CHECK,P_SPINS(d),XR(C)::R(F)+S(E)
      • S(d);CHECK,N_GUARD,XP(G)::B(A)+R(C)
      • K(c);S_FLIGHT::B(A)+R(C),XP(b)
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