MESON Chess Problem Database

Problem Display
PID: 252377 (4Rb2/4nr1q/8/Q1n1N1N1/2Bk4/2Rp1b2/K2pp2B/8 w - - 0 1)

Andersson, Harry

Schackvarlden, 1939

4Rb2/4nr1q/8/Q1n1N1N1/2Bk4/2Rp1b2/K2pp2B/8

#2

8 + 10

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qxc5#
    • 1...Sb3
      • 2.Bg1#
    • 1...Sa4
      • 2.Bg1#
    • 1...Se4
      • 2.Rxd3#
    • 1...Sa6
      • 2.Bg1#
    • 1...Se6
      • 2.Bg1#
    • 1...Sb7
      • 2.Bg1#
    • 1...Sd7
      • 2.Bg1#
    • 1...Sd5
      • 2.Sc6#
    • 1...Sf5
      • 2.Sexf3#
    • 1...Sc6
      • 2.Bg1#
    • 1...Sg6
      • 2.Bg1#
    • 1...Sc8
      • 2.Bg1#
    • 1...Sg8
      • 2.Bg1#
  • Tries
    • 1.Sexf3+?
      • 1...Ke3
        • 2.Qxc5#
      • 1...Rxf3!
    • 1.Sc6+?
      • 1...Ke3
        • 2.Qxc5#
      • 1...Sxc6
        • 2.Bg1#
      • 1...Bxc6!
    • 1.Qxc5+?
      • 1...Kxc3
        • 2.Bb3#
        • 2.Bxd3#
        • 2.Bb5#
        • 2.Bd5#
        • 2.Ba6#
        • 2.Be6#
        • 2.Bxf7#
      • 1...Kxc5!
  • Keys
    • 1.Bb3!
      • threat
        • 2.Qxc5#
      • 1...Ke3
        • 2.Qxc5#
      • 1...Sxb3
        • 2.Bg1#
      • 1...Sa4
        • 2.Bg1#
      • 1...Se4
        • 2.Rxd3#
      • 1...Sa6
        • 2.Bg1#
      • 1...Se6
        • 2.Bg1#
      • 1...Sb7
        • 2.Bg1#
      • 1...Sd7
        • 2.Bg1#
      • 1...Sd5
        • 2.Sc6#
      • 1...Sf5
        • 2.Sexf3#
      • 1...Sc6
        • 2.Bg1#
      • 1...Sg6
        • 2.Bg1#
      • 1...Sc8
        • 2.Bg1#
      • 1...Sg8
        • 2.Bg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(e);N_GUARD,P_SPINP(c),S_FLIGHT::QAB(E),XS(f)
    • S(f);::B(B)
    • S(f);N_GUARD,S_CUTQ(i)::R1(C),XP(c)
    • S(g);N_GUARD,S_CUTB(d)::S(F)
    • S(g);S_CUTR(h)::S(F),XB(d)
    • S(g);::B(B)
  • Tries
    • Try
      • S(F);CHECK,XB(d)
      • Vars
        • K(e);N_GUARD,P_SPINP(c),P_SPINS(g),S_FLIGHT::QAB(E),XS(f)
      • Refutation
        • R(h);XS(F)
    • Try
      • S(F);CHECK
      • Vars
        • K(e);N_GUARD,P_SPINP(c),P_SPINS(g),S_FLIGHT::QAB(E),XS(f)
        • S(g);XS(F)::B(B)
      • Refutation
        • B(d);XS(F)
    • Try
      • Q(E);CHECK,XS(f)
      • Refutation
        • K(e);S_FLIGHT,XQ(E)
  • Actual
    • B(D);
    • Threat
      • QAB1(E),XS(f)
    • Vars
      • K(e);P_SPINP(c),S_FLIGHT::QAB(E),XS(f)
      • S(f);XB(D)::B(B)
      • S(f);::B(B)
      • S(f);N_GUARD,S_CUTQ(i)::R1(C),XP(c)
      • S(g);N_GUARD,S_CUTB(d)::S(F)
      • S(g);S_CUTR(h)::S(F),XB(d)
      • S(g);::B(B)
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