MESON Chess Problem Database

Problem Display
PID: 227577 (8/3p3p/3Q3B/2p5/2p1k1Pp/2P4P/1P6/5K2 w - - 0 1)

Zilahi, Zoltan

Tijdschrift vd KNSB, 1926

8/3p3p/3Q3B/2p5/2p1k1Pp/2P4P/1P6/5K2

#2

7 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qf4#
  • Tries
    • 1.Qf4+?
      • 1...Kd3
        • 2.Qf5#
      • 1...Kd5!
    • 1.Qe5+?
      • 1...Kd3
        • 2.Qe2#
        • 2.Qf5#
      • 1...Kf3
        • 2.Qf4#
        • 2.Qe3#
      • 1...Kxe5!
    • 1.Qe7+?
      • 1...Kd3
        • 2.Qe2#
        • 2.Qxh7#
      • 1...Kf3
        • 2.Qe3#
      • 1...Kd5!
    • 1.Qd4+?
      • 1...Kf3
        • 2.Qe3#
        • 2.Qf4#
      • 1...cxd4!
    • 1.Qe6+?
      • 1...Kd3
        • 2.Qf5#
        • 2.Qe2#
      • 1...Kf3
        • 2.Qe3#
      • 1...dxe6!
    • 1.Qf6?
      • threat
        • 2.Qf5#
      • 1...Kd3
        • 2.Qf5#
      • 1...Kd5!
    • 1.b3?
      • 1...Kf3
        • 2.Qf4#
      • 1...cxb3!
  • Keys
    • 1.Qxc5!
      • threat
        • 2.Qf5#
      • 1...Kd3
        • 2.Qf5#
      • 1...Kf3
        • 2.Qe3#
      • 1...d5
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR1(F)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Refutation
        • K(b);P-FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Refutation
        • P(d);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • P(e);XQ(F)
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • K(b);S_FLIGHT::QAB(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(F)
      • Refutation
        • P(a);XP(B)
  • Actual
    • Q(F);XP(d)
    • Threat
      • QAB1(F)
    • Vars
      • K(b);S_FLIGHT::QAB(F)
      • K(b);S_FLIGHT::QAR1(F)
      • P(e);SBLOCK::QAR1(F)
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