MESON Chess Problem Database

Problem Display
PID: 166860 (1b4K1/8/NN6/pBQR4/1Rnnk3/p1r3p1/1p2pPP1/2Bq4 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Skakbladet, 1941

1b4K1/8/NN6/pBQR4/1Rnnk3/p1r3p1/1p2pPP1/2Bq4

#2

10 + 11

15148 Sadier Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qc2
      • 2.Rxd4#
      • 2.Qxd4#
    • 1...Qb3
      • 2.Rxd4#
      • 2.Qxd4#
    • 1...Qa4
      • 2.Rxd4#
      • 2.Qxd4#
    • 1...Qxc1
      • 2.Rxd4#
      • 2.Qxd4#
    • 1...Qe1
      • 2.Rxd4#
      • 2.Qxd4#
    • 1...Qf1
      • 2.Rxd4#
      • 2.Qxd4#
    • 1...Qg1
      • 2.Rxd4#
      • 2.Qxd4#
    • 1...Qh1
      • 2.Rxd4#
      • 2.Qxd4#
    • 1...Sd2
      • 2.Rbxd4#
      • 2.Rdxd4#
      • 2.Qxd4#
    • 1...Sd6
      • 2.Re5#
  • Tries
    • 1.Qf8?
      • threat
        • 2.Sc5#
      • 1...Kd3
        • 2.Qf5#
      • 1...Sxb6
        • 2.Qf5#
      • 1...Sd2
        • 2.Rbxd4#
        • 2.Qf5#
      • 1...Se3
        • 2.Qf3#
        • 2.f3#
      • 1...Se5
        • 2.Qf4#
      • 1...Sd6
        • 2.Qe7#
        • 2.Qf4#
      • 1...Sb3
        • 2.Qf5#
      • 1...Se6
        • 2.Qf5#
      • 1...Bd6!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Sc5#
      • 1...Kd3
        • 2.Qh7#
      • 1...Sxb6
        • 2.Re5#
      • 1...Sd2
        • 2.Rbxd4#
      • 1...Se3
        • 2.f3#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sd6
        • 2.Qe7#
      • 1...Sb3
        • 2.Qh7#
      • 1...Se6
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD,P_SPINS(h),S_CUTB(k)::R1(G)
  • Tries
    • Try
      • Q(F);
      • Threat
        • S(H)
      • Vars
        • K(i);P_SPINS(g),S_FLIGHT::QAB(F)
        • S(g);P_SPINS(h),XS(I)::QAB1(F)
        • S(g);P_SPINS(h),S_CUTB(k)::QAR1(F)
        • S(h);N_GUARD,P_SPINS(g)::QAB1(F)
      • Refutation
        • B(k);
  • Actual
    • Q(F);
    • Threat
      • S(H)
    • Vars
      • K(i);P_SPINS(g),S_FLIGHT::QAB(F)
      • S(g);N_GUARD,P_SPINS(h),XS(I)::R1(G)
      • S(g);OGATE,P_SPINS(h)::R1(D),XS(h)
      • S(g);P_SPINS(h),S_CUTR(e)::P(B)
      • S(g);N_GUARD,P_SPINS(h)::R1(G),XS(g)
      • S(g);N_GUARD,P_SPINS(h),S_CUTB(k)::QAR(F)
      • S(h);N_GUARD,P_SPINS(g)::QAB(F)
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