MESON Chess Problem Database

Problem Display
PID: 165701 (2Q5/7B/8/B2NPR2/K1P5/1N3p1P/3pkpp1/4brrb w - - 0 1)

Ouellet, Charles

Die Schwalbe, 2016

2Q5/7B/8/B2NPR2/K1P5/1N3p1P/3pkpp1/4brrb

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...d1S
      • 2.Sc1#
  • Tries
    • 1.Sd4+?
      • 1...Kd3
        • 2.Rf4#
      • 1...Kd1!
    • 1.Sc3+?
      • 1...Kd3
        • 2.Rxf3#
      • 1...Ke3!
    • 1.e6?
      • 1...Kd3
        • 2.Re5#
      • 1...d1Q
        • 2.Re5#
      • 1...d1S
        • 2.Sc1#
      • 1...d1B
        • 2.Re5#
      • 1...d1R
        • 2.Re5#
      • 1...Kd1!
  • Keys
    • 1.Rxf3!
      • 1...Kd1
        • 2.Sc3#
      • 1...Kxf3
        • 2.Qg4#
      • 1...d1Q
        • 2.Re3#
      • 1...d1S
        • 2.Sd4#
      • 1...d1B
        • 2.Re3#
      • 1...d1R
        • 2.Re3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(e);N_GUARD,SBLOCK::S(A)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(f);S_FLIGHT::B(I)+R(H)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(f);S_FLIGHT::B(I)+R(H),DCHECK,XP(i)
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • P(G);
      • Vars
        • K(f);S_FLIGHT::B(I)+R(H)
        • P(e);P_PINS(A),SBLOCK::R(H)
        • P(e);N_GUARD,SBLOCK::S(A)
        • P(e);SBLOCK::R(H)
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • R(H);XP(i)
    • Vars
      • K(f);S_FLIGHT::S(F)
      • K(f);OGATEB,S_FLIGHT,XR(H)::QAB1(J)
      • P(e);P_PINS(A),SBLOCK::R1(H)
      • P(e);SBLOCK::S(A)
      • P(e);SBLOCK::R1(H)
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