MESON Chess Problem Database

Problem Display
PID: 215673 (b3n3/3pK3/N6p/1p2P2Q/1N1kp3/1P6/6B1/2R1R3 w - - 0 1)

Witt, Andreas

Badische Neueste Nachrichten, 1997

b3n3/3pK3/N6p/1p2P2Q/1N1kp3/1P6/6B1/2R1R3

#2

9 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Red1#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Rcd1#
        • 2.Red1#
      • 1...Kd3
        • 2.Red1#
        • 2.Qd1#
      • 1...Kxd5
        • 2.Red1#
      • 1...Bxd5!
    • 1.Qh3?
      • threat
        • 2.Qc3#
      • 1...e3
        • 2.Qxe3#
      • 1...Kxe5!
  • Keys
    • 1.Sa2!
      • threat
        • 2.Rcd1#
      • 1...Kd3
        • 2.Qd1#
      • 1...Kd5
        • 2.Red1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(b);SBLOCK::R(B)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b),XS(E)::R(B)
      • Refutation
        • B(f);XS(E)
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • P(b);::QAB1(G),XP(b)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT,XP(F)
  • Actual
    • S(E);
    • Threat
      • R(A)
    • Vars
      • K(a);P-FLIGHT::QAR2(G)
      • K(a);P-FLIGHT,P_SPINP(b)::R(B)
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