MESON Chess Problem Database

Problem Display
PID: 187972 (6Q1/8/1P6/1P6/1k6/1PN5/4K3/1R6 w - - 0 1)

Blatt, Ferenc

Pesti Naplo, 1910

6Q1/8/1P6/1P6/1k6/1PN5/4K3/1R6

#2

7 + 1

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ka3
      • 2.Qf8#
    • 1...Kxc3
      • 2.Qc4#
  • Tries
    • 1.Qc4+?
      • 1...Ka3
        • 2.Qa4#
        • 2.Qc5#
      • 1...Ka5!
    • 1.Qd5?
      • 1...Ka3
        • 2.Qc5#
        • 2.Qd6#
      • 1...Kxc3
        • 2.Qc4#
        • 2.Qd2#
        • 2.Qc5#
      • 1...Ka5!
    • 1.Qe6?
      • 1...Ka3
        • 2.Qd6#
        • 2.Qe7#
      • 1...Kxc3
        • 2.Qc4#
      • 1...Ka5
        • 2.b4#
      • 1...Kc5!
    • 1.Qg5?
      • 1...Ka3
        • 2.Qe7#
        • 2.Qc5#
      • 1...Kxc3
        • 2.Qd2#
        • 2.Qc5#
      • 1...Ka5!
    • 1.Qc8?
      • 1...Ka3
        • 2.Qc5#
        • 2.Qf8#
      • 1...Ka5!
    • 1.Qd8?
      • 1...Ka3
        • 2.Qe7#
        • 2.Qd6#
        • 2.Qf8#
      • 1...Kxc3
        • 2.Qd2#
      • 1...Ka5
        • 2.b4#
      • 1...Kc5!
    • 1.Qf8+?
      • 1...Kxc3
        • 2.Qc5#
      • 1...Ka5!
  • Keys
    • 1.Qg1!
      • 1...Ka3
        • 2.Qc5#
      • 1...Kxc3
        • 2.Qc5#
      • 1...Ka5
        • 2.b4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(G)
    • K(a);S_FLIGHT,XS(D)::QAR1(G)
  • Tries
    • Try
      • Q(G);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);S_FLIGHT,XS(D)::QAR1(G)
        • K(a);OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB1(G)
        • K(a);OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(D)::QAR2(G)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(G);
    • Vars
      • K(a);S_FLIGHT::QAB(G)
      • K(a);S_FLIGHT,XS(D)::QAR2(G)
      • K(a);OGATE,S_FLIGHT::P(C)
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