MESON Chess Problem Database

Problem Display
PID: 21647 (1Bb3K1/1nnp1R1p/8/p3k3/rb2N3/1BPp2p1/3r4/7Q w - - 0 1)

Niemeijer, Meindert

2nd Place, Good Companions, 1920

1Bb3K1/1nnp1R1p/8/p3k3/rb2N3/1BPp2p1/3r4/7Q

#2

7 + 12

3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Tries
    • 1.Sxd2?
      • threat
        • 2.Qd5#
      • 1...Kd6
        • 2.Qd5#
      • 1...d5
        • 2.Qxd5#
      • 1...Bd6
        • 2.Qh5#
      • 1...g2
        • 2.Qh2#
      • 1...d6
        • 2.Qe4#
        • 2.Qe1#
      • 1...Sd6!
  • Keys
    • 1.Sf2!
      • threat
        • 2.Qd5#
      • 1...Kd6
        • 2.Qd5#
      • 1...d5
        • 2.Qxd5#
      • 1...Bd6
        • 2.Qh5#
      • 1...Sd6
        • 2.Sg4#
      • 1...g2
        • 2.Qh2#
      • 1...d6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);XR(a)
      • Threat
        • QAR1(A)
      • Vars
        • K(g);S_FLIGHT::QAR1(A)
        • P(j);::QAR1(A),XP(j)
        • B(e);N_SPINS(i),SBLOCK::QAR(A)
        • P(c);OGATEB::QAB(A)
      • Refutation
        • S(h);N_SPINS(i)
  • Actual
    • S(D);
    • Threat
      • QAR1(A)
    • Vars
      • K(g);S_FLIGHT::QAR1(A)
      • P(j);::QAR1(A),XP(j)
      • B(e);N_SPINS(i),SBLOCK::QAR(A)
      • S(h);N_SPINS(i),SBLOCK::S(D)
      • P(c);OGATEB::QAB(A)
      • P(j);N_SPINS(i),SBLOCK::QAR1(A)
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