MESON Chess Problem Database

Problem Display
PID: 165089 (8/3KN1k1/8/4R3/6P1/8/8/5Q2 w - - 0 1)

Prytz, Rudolf

Skakbladet, 1922

8/3KN1k1/8/4R3/6P1/8/8/5Q2

#2

5 + 1

5454 Near Snap 2017
15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Rg5+?
      • 1...Kh7
        • 2.Qh3#
        • 2.Qh1#
      • 1...Kh8
        • 2.Qh3#
        • 2.Qh1#
      • 1...Kh6!
    • 1.Qf4?
      • 1...Kh8
        • 2.Qh6#
      • 1...Kh7!
    • 1.Qf5?
      • 1...Kh6
        • 2.Qg6#
      • 1...Kh8!
    • 1.Qf6+?
      • 1...Kh7
        • 2.Rh5#
      • 1...Kxf6!
    • 1.Qf7+?
      • 1...Kh6
        • 2.Sg8#
        • 2.Rh5#
        • 2.Qg6#
        • 2.g5#
      • 1...Kh8
        • 2.Sg6#
        • 2.Rh5#
        • 2.Qg8#
      • 1...Kxf7!
    • 1.Qf8+?
      • 1...Kh7
        • 2.Rh5#
      • 1...Kxf8!
  • Keys
    • 1.Qa1!
      • 1...Kf6
        • 2.Rf5#
      • 1...Kh6
        • 2.Rh5#
      • 1...Kf7
        • 2.Rf5#
      • 1...Kh7
        • 2.Rh5#
      • 1...Kf8
        • 2.Rf5#
      • 1...Kh8
        • 2.Rh5#

Anticipated by 44840(0000), 22515(1881)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::QAB(A)+R(C),DCHECK
      • K(a);S_FLIGHT::R1(C)
      • K(a);P-FLIGHT::R(C)
      • K(a);S_FLIGHT::R(C)
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