MESON Chess Problem Database

Problem Display
PID: 151471 (8/8/1QR5/5p2/3pp1p1/4k1p1/6P1/4K3 w - - 0 1)

Reimann, Friedrich

Source?, 1909

8/8/1QR5/5p2/3pp1p1/4k1p1/6P1/4K3

#2

4 + 6

119 Tidskrift for Schack 1909

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qb3#
    • 1...f4
      • 2.Rc3#
  • Tries
    • 1.Rc1?
      • 1...Kd3
        • 2.Qb3#
      • 1...f4
        • 2.Rc3#
      • 1...Kf4!
    • 1.Rc2?
      • 1...Kd3
        • 2.Qb3#
      • 1...f4
        • 2.Rc3#
      • 1...Kf4!
    • 1.Rc4?
      • 1...Kd3
        • 2.Qxd4#
        • 2.Qb3#
      • 1...f4
        • 2.Rc3#
        • 2.Qxd4#
      • 1...Kf4!
    • 1.Rd6?
      • 1...Kd3
        • 2.Qb3#
      • 1...f4
        • 2.Qxd4#
      • 1...Kf4!
    • 1.Rc7?
      • 1...Kd3
        • 2.Qb3#
      • 1...f4
        • 2.Rc3#
      • 1...Kf4!
    • 1.Rc8?
      • 1...Kd3
        • 2.Qb3#
      • 1...f4
        • 2.Rc3#
      • 1...Kf4!
    • 1.Qa7?
      • 1...Kd3
        • 2.Qa3#
      • 1...f4
        • 2.Rc3#
      • 1...Kf4!
  • Keys
    • 1.Rc5!
      • 1...Kd3
        • 2.Qb3#
      • 1...Kf4
        • 2.Qh6#
      • 1...d3
        • 2.Rxf5#
      • 1...f4
        • 2.Rc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(c),P-FLIGHT::QAR2(C)
    • P(f);SBLOCK::R(D)
  • Tries
    • Try
      • R(D);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(C)
        • P(f);SBLOCK::R(D)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(C)
        • P(f);SBLOCK::R(D)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT
    • Try
      • R(D);
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
        • P(f);SBLOCK::QAB1(C),XP(c)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(C)
        • P(f);SBLOCK::R(D)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(C)
        • P(f);SBLOCK::R(D)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR(C)
        • P(f);SBLOCK::R(D)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT
  • Actual
    • R(D);N_PINP(c)
    • Vars
      • K(a);P-FLIGHT::QAR2(C)
      • K(a);S_FLIGHT::QAB(C)
      • P(c);OGATEB,SBLOCK::QAB(C)+R(D),XP(f)
      • P(f);SBLOCK::R(D)
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