MESON Chess Problem Database

Problem Display
PID: 241487 (1b2rn2/8/8/2BkN3/1K6/3p3B/8/4Q3 w - - 0 1)

Hjelle, David

Magyar Sakkelet, 1970

1b2rn2/8/8/2BkN3/1K6/3p3B/8/4Q3

#2

5 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Bg2#
    • 1...Bxe5
      • 2.Qh1#
    • 1...Se6
      • 2.Bg2#
  • Tries
    • 1.Qe3?
      • threat
        • 2.Qd4#
      • 1...Bxe5
        • 2.Qf3#
      • 1...Se6
        • 2.Bg2#
      • 1...Rxe5!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qd4#
      • 1...Ke4
        • 2.Qd4#
      • 1...Rxe5
        • 2.Qa8#
      • 1...Bxe5
        • 2.Qh1#
      • 1...Se6
        • 2.Bg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(d);SBLOCK::B(B)
    • B(c);SBLOCK,XS(E)::QAB(A)
    • S(e);SBLOCK::B(B)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • B(c);SBLOCK,XS(E)::QAB(A)
        • S(e);SBLOCK::B(B)
      • Refutation
        • R(d);XS(E)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(b);S_FLIGHT::QAR1(A)
      • R(d);SBLOCK,XS(E)::QAB(A)
      • B(c);SBLOCK,XS(E)::QAB(A)
      • S(e);SBLOCK::B(B)
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