MESON Chess Problem Database

Problem Display
PID: 151537 (7q/8/8/7B/6R1/1PP5/1Q1NPP2/3k1K2 w - - 0 1)

Ahlheim, Karl-Heinz

Revista Romana de Sah, 1963

7q/8/8/7B/6R1/1PP5/1Q1NPP2/3k1K2

#2

9 + 2

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Se4?
      • threat
        • 2.Qb1#
        • 2.Qd2#
      • 1...Qxc3
        • 2.Sxc3#
      • 1...Qd4
        • 2.Qb1#
      • 1...Qd8
        • 2.Qb1#
      • 1...Qh6!
    • 1.Ra4?
      • threat
        • 2.Ra1#
      • 1...Qxc3
        • 2.e3#
      • 1...Qa8
        • 2.e4#
      • 1...Qh7!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Qb1#
      • 1...Qxd4
        • 2.e4#
      • 1...Qh7
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);XP(G)::S(C),XQ(b)
        • Q(b);::QAR2(B)
      • Refutation
        • Q(b);
    • Try
      • R(H);
      • Threat
        • R(H)
      • Vars
        • Q(b);N_GUARD,XP(G)::B(I)+P(D)
        • Q(b);N_GUARD::B(I)+P(D)
      • Refutation
        • Q(b);
  • Actual
    • R(H);
    • Threat
      • QAR2(B)
    • Vars
      • Q(b);N_GUARD,XR(H)::B(I)+P(D)
      • Q(b);N_GUARD::R(H)+S(C)
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