MESON Chess Problem Database

Problem Display
PID: 231583 (8/3p3N/2p1k3/2Q1N3/3P4/5K2/8/8 w - - 0 1)

Tiszay, Geza

Uj Nemezdek, 1927

8/3p3N/2p1k3/2Q1N3/3P4/5K2/8/8

#2

5 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sf8+?
      • 1...Kf5
        • 2.Sexd7#
      • 1...Kf6!
    • 1.Qd6+?
      • 1...Kf5
        • 2.Qf6#
        • 2.Qg6#
        • 2.Qxd7#
      • 1...Kxd6!
    • 1.Qe7+?
      • 1...Kd5
        • 2.Qxd7#
      • 1...Kf5
        • 2.Qf6#
        • 2.Qxd7#
        • 2.Qf7#
      • 1...Kxe7!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qxd7#
      • 1...Kd5
        • 2.Qxd7#
      • 1...Kf5
        • 2.Qxd7#
      • 1...Kd6
        • 2.Qxd7#
      • 1...Ke7
        • 2.Qxd7#
      • 1...d5
        • 2.Qd7#
      • 1...d6
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR(C)+S(D),XP(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(b);P-FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(C),XP(c)
      • Refutation
        • K(b);P-FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C),XP(c)
    • Vars
      • K(b);S_FLIGHT::QAR2(C),XP(c)
      • K(b);S_FLIGHT::QAB(C),XP(c)
      • K(b);P-FLIGHT::QAR1(C),XP(c)
      • K(b);P-FLIGHT,P_SPINP(c)::QAR1(C),XP(c)
      • P(c);::QAB1(C)
      • P(c);OGATE,SBLOCK::QAB1(C)
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