MESON Chess Problem Database

Problem Display
PID: 229105 (4K3/8/4N3/6n1/3p2r1/4kpp1/R7/BQ5B w - - 0 1)

Regos, Imre

Magyar Sakkvilag, 1926

4K3/8/4N3/6n1/3p2r1/4kpp1/R7/BQ5B

#2

6 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Bxd4#
    • 1...d3
      • 2.Qe1#
  • Tries
    • 1.Qc1+?
      • 1...Kd3
        • 2.Sc5#
      • 1...Ke4!
  • Keys
    • 1.Bb2!
      • threat
        • 2.Bc1#
      • 1...Kd2
        • 2.Bxd4#
      • 1...Ke2
        • 2.Bxd4#
      • 1...Kf2
        • 2.Bxd4#
      • 1...d3
        • 2.Qe1#
      • 1...Se4
        • 2.Bxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(f);S_CUTR(e)::B(A),XP(d)
    • P(d);SBLOCK::QAR2(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::S(E)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
  • Actual
    • B(A);
    • Threat
      • B(A)
    • Vars
      • K(a);S_FLIGHT::R(D)+B(A),XP(d)
      • K(a);P-FLIGHT::R(D)+B(A),XP(d)
      • K(a);S_FLIGHT::R(D)+B(A),DCHECK,XP(d)
      • P(d);SBLOCK::QAR2(B)
      • S(f);S_CUTR(e)::B(A),XP(d)
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