MESON Chess Problem Database

Problem Display
PID: 118523 (5Q2/2N2N1p/K2P4/p3P3/r3k1p1/3pP1np/3P2Pq/b7 w - - 0 1)

Schneider, Michael

Sahs, 1964

5Q2/2N2N1p/K2P4/p3P3/r3k1p1/3pP1np/3P2Pq/b7

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe5
      • 2.Sg5#
    • 1...Sf5
      • 2.Qa8#
  • Tries
    • 1.Qg7?
      • threat
        • 2.Qxg4#
      • 1...Kf5
        • 2.Qxh7#
      • 1...Bxe5
        • 2.Qxe5#
      • 1...Sf1
        • 2.Qxh7#
      • 1...Sh1
        • 2.Qxh7#
      • 1...Se2
        • 2.Qxh7#
      • 1...Sf5
        • 2.Sg5#
      • 1...Sh5
        • 2.Qxh7#
      • 1...h5!
  • Keys
    • 1.Sh6!
      • threat
        • 2.Qf4#
      • 1...Kxe5
        • 2.Qe7#
      • 1...Bxe5
        • 2.Qa8#
      • 1...Sf1
        • 2.Qf5#
      • 1...Sh1
        • 2.Qf5#
      • 1...Se2
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sh5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK,XP(D)::S(H)
    • S(d);SBLOCK::QAB(I)
  • Tries
    • Try
      • Q(I);
      • Threat
        • QAR2(I),XP(h)
      • Vars
        • K(g);S_FLIGHT::QAB(I),XP(j)
        • B(a);OGATE,XP(D)::QAR1(I),XB(a)
        • S(d);N_GUARD::QAB(I),XP(j)
        • S(d);SBLOCK::S(H)
      • Refutation
        • P(j);
  • Actual
    • S(H);
    • Threat
      • QAR1(I)
    • Vars
      • K(g);OGATEB,P-FLIGHT,XP(D)::QAR2(I)
      • B(a);SBLOCK,XP(D)::QAB(I)
      • S(d);N_GUARD::QAB1(I)
      • S(d);N_GUARD::QAB1(I),XS(d)
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Developed and maintained by Brian Stephenson.
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