MESON Chess Problem Database

Problem Display
PID: 108786 (7b/P7/2rpQ1p1/1N2p3/1n1Bk1n1/3Rp3/1qPP4/3N1RK1 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Thema Danicum, 1986

7b/P7/2rpQ1p1/1N2p3/1n1Bk1n1/3Rp3/1qPP4/3N1RK1

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Rxd4#
    • 1...Rc3
      • 2.Sxd6#
    • 1...Rc4
      • 2.Sxd6#
    • 1...Rc5
      • 2.Sxd6#
    • 1...Rc7
      • 2.Sxd6#
    • 1...Rc8
      • 2.Sxd6#
    • 1...Sd5
      • 2.Qxg6#
    • 1...Sh2
      • 2.Rxe3#
    • 1...Sf6
      • 2.Rxe3#
    • 1...Sh6
      • 2.Rxe3#
    • 1...d5
      • 2.Qxg4#
  • Tries
    • 1.Sdc3+?
      • 1...Rxc3
        • 2.Sxd6#
      • 1...Qxc3!
  • Keys
    • 1.Qxg4+!
      • 1...Kd5
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • Q(a);OGATE,XB(G)::R1(F),XQ(a)
    • R(g);N_GUARD::S(H),XP(h)
    • S(c);SBLOCK::QAB(I),XP(i)
    • S(e);N_GUARD::R1(F),XP(b)
    • P(h);SBLOCK::QAR2(I),XS(e)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • R(g);XS(A)::S(H),XP(h)
      • Refutation
        • Q(a);XS(A)
  • Actual
    • Q(I);CHECK,N_PINP(f),XS(e)
    • Vars
      • K(d);S_FLIGHT::S(A),XP(b)
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