MESON Chess Problem Database

Problem Display
PID: 147370 (K2R4/1np5/B7/1P2rN2/2kBP3/Qp3r2/2P5/4b3 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

2nd Place, Match: Denmark - Netherlands, 1946

K2R4/1np5/B7/1P2rN2/2kBP3/Qp3r2/2P5/4b3

#2

9 + 7

259 Thema Danicum 1977

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Se3#
      • 2.Qxb3#
    • 1...Rf2
      • 2.Se3#
      • 2.Qxb3#
    • 1...Rc3
      • 2.Qa4#
    • 1...Re3
      • 2.Sxe3#
    • 1...Rf4
      • 2.Se3#
      • 2.Qxb3#
    • 1...Rfxf5
      • 2.Qxb3#
    • 1...Rxe4
      • 2.b6#
    • 1...Re6
      • 2.b6#
    • 1...Re7
      • 2.b6#
    • 1...Re8
      • 2.b6#
    • 1...Bf2
      • 2.Qa4#
    • 1...Bc3
      • 2.Qxb3#
    • 1...Bg3
      • 2.Qa4#
    • 1...Bh4
      • 2.Qa4#
    • 1...c5
      • 2.b6#
  • Keys
    • 1.Bc3!
      • threat
        • 2.Qb4#
      • 1...Kxc3
        • 2.Qxb3#
      • 1...Rxc3
        • 2.Rd4#
      • 1...Bxc3
        • 2.cxb3#
      • 1...c5
        • 2.Qxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • R(c);S_CUTB(a)::QAR2(B)
    • R(c);N_GUARD::S(F),XR(c)
    • R(c);N_GUARD,XS(F)::QAB1(B),XP(b)
    • R(e);N_GUARD,XP(D)::B(G)+P(E)
    • R(e);N_GUARD::B(G)+P(E)
    • R(e);N_GUARD,P_PINR(I)::B(G)+P(E)
    • B(a);N_GUARD::QAR2(B)
    • B(a);S_CUTR(c)::QAB1(B),XP(b)
    • P(g);S_CUTR(e)::B(G)+P(E)
  • Actual
    • B(C);
    • Threat
      • QAR1(B)
    • Vars
      • K(d);P-FLIGHT,P_SPINP(b),XB(C)::QAR1(B),XP(b)
      • R(c);SBLOCK,XB(C)::R1(I)
      • B(a);SBLOCK,XB(C)::P(A),XP(b)
      • P(g);SBLOCK::QAB1(B),XP(b)
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