MESON Chess Problem Database

Problem Display
PID: 213823 (8/8/8/1K6/4Q3/8/1kN5/2N5 w - - 0 1)

Csontos, Z

Funkschach, 1926

8/8/8/1K6/4Q3/8/1kN5/2N5

#2

4 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sa1?
      • 1...Kxc1
        • 2.Qc2#
      • 1...Ka3
        • 2.Qb4#
      • 1...Kc3
        • 2.Qb4#
      • 1...Kxa1!
    • 1.Se1?
      • 1...Kxc1
        • 2.Qc2#
      • 1...Ka3
        • 2.Qb4#
      • 1...Kc3
        • 2.Qb4#
      • 1...Ka1!
    • 1.Se3?
      • 1...Kxc1
        • 2.Qc2#
      • 1...Ka3
        • 2.Sc4#
        • 2.Qb4#
      • 1...Kc3
        • 2.Qb4#
      • 1...Ka1!
  • Keys
    • 1.Sa3!
      • 1...Ka1
        • 2.Qb1#
        • 2.Qd4#
        • 2.Qe5#
      • 1...Kxc1
        • 2.Qc2#
      • 1...Kxa3
        • 2.Qb4#
      • 1...Kc3
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT,XS(A)::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT,XS(A)::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT,XS(A)::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(a);S_FLIGHT,XS(A)::QAR1(C)
      • K(a);S_FLIGHT,XS(B)::QAB1(C)
      • K(a);S_FLIGHT::QAB1(C)
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