MESON Chess Problem Database

Problem Display
PID: 53743 (1R2K3/2p5/2Rp4/2pk4/Q1N3P1/4P3/4P3/8 w - - 0 1)

Chebanov, Nikolai V

Probleemblad, 2004

1R2K3/2p5/2Rp4/2pk4/Q1N3P1/4P3/4P3/8

#2

8 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Rxd6+?
      • 1...Ke4
        • 2.Qc2#
        • 2.Qc6#
      • 1...cxd6!
    • 1.Qd1+?
      • 1...Kxc4
        • 2.Qb3#
        • 2.Qd3#
        • 2.Qd4#
      • 1...Ke4
        • 2.Qh1#
        • 2.Qd3#
      • 1...Kxc6
        • 2.Sa5#
      • 1...Ke6!
    • 1.Qc2?
      • 1...Ke6
        • 2.Qf5#
      • 1...Kxc6!
    • 1.Qb3?
      • 1...Ke4
        • 2.Qd3#
      • 1...Kxc6
        • 2.Sa5#
        • 2.Qb7#
      • 1...Ke6!
    • 1.Qa3?
      • 1...Kxc4
        • 2.Qb3#
        • 2.Qd3#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kxc6
        • 2.Qa8#
      • 1...Ke6!
  • Keys
    • 1.Qa1!
      • 1...Kxc4
        • 2.Qd4#
      • 1...Ke4
        • 2.Qh1#
      • 1...Kxc6
        • 2.Qa8#
      • 1...Ke6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);CHECK,XP(c)
      • Refutation
        • P(d);XR(F)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(F)::S(D)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT,XR(F)
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
        • K(b);OGATEB,S_FLIGHT,XR(F)::QAB(C)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT,XS(D)::QAR1(C)
      • K(b);S_FLIGHT::QAB(C)
      • K(b);OGATEB,S_FLIGHT,XR(F)::QAB(C)
      • K(b);P_SPINP(c),S_FLIGHT::QAR1(C)
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