MESON Chess Problem Database

Problem Display
PID: 183213 (Q7/5pN1/7p/2B1k2P/4N2P/8/6P1/2K5 w - - 0 1)

Schuster, Zsigmond

Pesti Naplo, 1907

Q7/5pN1/7p/2B1k2P/4N2P/8/6P1/2K5

#2

8 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sf2?
      • 1...Kf4
        • 2.Qb8#
      • 1...Kf6
        • 2.Qa1#
      • 1...f6
        • 2.Sd3#
        • 2.Qe4#
      • 1...f5!
    • 1.Qd5+?
      • 1...Kf4
        • 2.Qf5#
      • 1...Kxd5!
    • 1.Qc8?
      • threat
        • 2.Qf5#
      • 1...Kxe4
        • 2.Qf5#
      • 1...Kf4
        • 2.Qf5#
      • 1...f5
        • 2.Qxf5#
      • 1...Kd5!
  • Keys
    • 1.Sf6!
      • 1...Kf4
        • 2.Qb8#
      • 1...Kxf6
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAB(H)
      • Refutation
        • P(c);
    • Try
      • Q(H);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(H)
      • Refutation
        • K(a);P-FLIGHT,XQ(H)
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • K(a);P-FLIGHT,XS(C)::QAB1(H)
        • K(a);S_FLIGHT::QAR1(H)
        • P(c);::QAR1(H),XP(c)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT::QAB(H)
      • K(a);S_FLIGHT,XS(C)::QAB(H)
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