MESON Chess Problem Database

Problem Display
PID: 246366 (q7/7b/pN6/2ppBpp1/6p1/4k3/1p2p1P1/1B2Q2K w - - 0 1)

Goldschmeding, Cornelis

Europe Echecs, 1966

q7/7b/pN6/2ppBpp1/6p1/4k3/1p2p1P1/1B2Q2K

#2

6 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qa7
      • 2.Sxd5#
    • 1...Qb8
      • 2.Sxd5#
    • 1...Qc8
      • 2.Sxd5#
    • 1...Qe8
      • 2.Sxd5#
    • 1...Qf8
      • 2.Sxd5#
    • 1...Qh8
      • 2.Sxd5#
    • 1...d4
      • 2.Sc4#
  • Tries
    • 1.Kg1?
      • threat
        • 2.Qc3#
      • 1...d4
        • 2.Sc4#
      • 1...f4!
    • 1.Bg3?
      • threat
        • 2.Qc3#
      • 1...Kd4
        • 2.Qd2#
      • 1...d4
        • 2.Sc4#
      • 1...f4
        • 2.Bf2#
      • 1...Qh8!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Qg3#
      • 1...Kf4
        • 2.Qf2#
      • 1...Qb8
        • 2.Sxd5#
      • 1...g3
        • 2.Qxg3#
      • 1...d4
        • 2.Bd2#
      • 1...f4
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • Q(k);N_GUARD::S(F),XP(f)
    • P(f);N_GUARD,P_PINP(D)::S(F)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Threat
        • QAR2(B)
      • Vars
        • P(f);N_GUARD::S(F)
      • Refutation
        • P(g);
    • Try
      • B(E);
      • Threat
        • QAR2(B)
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::QAR2(B)
        • P(f);N_GUARD,P_PINP(D),SBLOCK::S(F)
        • P(g);SBLOCK::B(E)
      • Refutation
        • Q(k);
  • Actual
    • B(E);
    • Threat
      • QAR2(B)
    • Vars
      • K(c);N_SPINP(b),S_FLIGHT::QAR2(B)
      • Q(k);N_GUARD::S(F),XP(f)
      • P(d);::QAR2(B),XP(d)
      • P(f);P_PINP(D),SBLOCK::B(E)
      • P(g);SBLOCK::QAB(B)
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