MESON Chess Problem Database

Problem Display
PID: 241454 (5bn1/3p1r2/R4p2/K1kN4/ppp1QB2/q7/n7/2r5 w - - 0 1)

Hjelle, David

Arbejder-Skak, 1955

5bn1/3p1r2/R4p2/K1kN4/ppp1QB2/q7/n7/2r5

#2

5 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qe3
      • 2.Bxe3#
    • 1...Re7
      • 2.Bd6#
    • 1...Bd6
      • 2.Bxd6#
    • 1...Bh6
      • 2.Bd6#
    • 1...Bg7
      • 2.Bd6#
    • 1...Sc3
      • 2.Be3#
    • 1...Se7
      • 2.Bd6#
    • 1...b3
      • 2.Be3#
    • 1...c3
      • 2.Be3#
  • Tries
    • 1.Se3?
      • threat
        • 2.Qd5#
      • 1...Qxe3
        • 2.Bxe3#
      • 1...Rd1
        • 2.Qxc4#
      • 1...Sc3
        • 2.Qxc4#
      • 1...Se7
        • 2.Bd6#
      • 1...d5
        • 2.Qxd5#
      • 1...Qd3!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Qd5#
      • 1...d5
        • 2.Qxd5#
      • 1...Qd3
        • 2.Sxa4#
      • 1...Qf3
        • 2.Sxa4#
      • 1...Rd1
        • 2.Qxc4#
      • 1...Sc3
        • 2.Qxc4#
      • 1...Se7
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • Q(c);N_GUARD::B(B),XQ(c)
    • R(j);S_CUTB(k)::B(B)
    • B(k);N_GUARD::B(B),XB(k)
    • B(k);N_GUARD::B(B)
    • S(b);S_CUTQ(c)::B(B)
    • S(l);S_CUTB(k)::B(B)
    • P(e);S_CUTQ(c)::B(B)
    • P(f);S_CUTQ(c)::B(B)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(A)
      • Vars
        • Q(c);OGATE,XS(D)::B(B),XQ(c)
        • R(a);N_GUARD::QAR1(A),XP(f)
        • S(b);S_CUTR(a)::QAR1(A),XP(f)
        • S(l);S_CUTB(k)::B(B)
        • P(i);::QAR1(A),XP(i)
      • Refutation
        • Q(c);
  • Actual
    • S(D);
    • Threat
      • QAR1(A)
    • Vars
      • P(i);::QAR1(A),XP(i)
      • Q(c);N_GUARD::S(D),XP(d)
      • R(a);N_GUARD::QAR1(A),XP(f)
      • S(b);S_CUTR(a)::QAR1(A),XP(f)
      • S(l);S_CUTR(j)::S(D),XP(i)
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