MESON Chess Problem Database

Problem Display
PID: 235364 (2R3n1/1p2p1Q1/8/p2pp2r/Pk1B4/2N4p/KP6/8 w - - 0 1)

Paslack, Rainer

Schach, 2002

2R3n1/1p2p1Q1/8/p2pp2r/Pk1B4/2N4p/KP6/8

#2

7 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Qxe7#
    • 1...Sh6
      • 2.Qxe7#
    • 1...exd4
      • 2.Qxd4#
    • 1...e6
      • 2.Qxb7#
  • Tries
    • 1.Qg4?
      • threat
        • 2.Bc5#
      • 1...exd4
        • 2.Qxd4#
      • 1...e4!
  • Keys
    • 1.b3!
      • threat
        • 2.Sxd5#
      • 1...exd4
        • 2.Qxd4#
      • 1...Sf6
        • 2.Qxe7#
      • 1...e4
        • 2.Bc5#
      • 1...e6
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(i);N_GUARD::QAB(F),XP(h)
    • P(e);OGATE,XB(E)::QAR2(F),XP(e)
    • P(h);OGATE::QAR(F),XP(g)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAR(F)+B(E),DCHECK
      • Vars
        • P(e);OGATE,P_SPINP(e),XB(E)::QAR2(F),XP(e)
      • Refutation
        • P(e);
  • Actual
    • P(B);
    • Threat
      • S(C),XP(d)
    • Vars
      • P(e);OGATE,XB(E)::QAR2(F),XP(e)
      • S(i);N_GUARD::QAB(F),XP(h)
      • P(e);::B(E)
      • P(h);OGATE::QAR(F),XP(g)
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