MESON Chess Problem Database

Problem Display
PID: 117279 (4n3/1b4p1/7b/R3pN2/1Nqpk1P1/3p4/B2r2P1/1QB2R1K w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Skakbladet, 1992

4n3/1b4p1/7b/R3pN2/1Nqpk1P1/3p4/B2r2P1/1QB2R1K

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sg3#
    • 1...Rxa2
      • 2.Sg3#
    • 1...Rb2
      • 2.Sg3#
    • 1...Rc2
      • 2.Sg3#
    • 1...Re2
      • 2.Sg3#
    • 1...Rf2
      • 2.Sg3#
    • 1...Be3
      • 2.Sg3#
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Rxe5#
      • 1...Qxd3
        • 2.Qxb7#
      • 1...Rxd3
        • 2.Sg3#
      • 1...Qc2
        • 2.Sc5#
      • 1...Rc2
        • 2.Sf2#
      • 1...Qb5
        • 2.Sc5#
      • 1...Qd5
        • 2.Sc5#
      • 1...Qe6
        • 2.Sc5#
      • 1...Qc5
        • 2.Sxc5#
      • 1...Qc7
        • 2.Sc5#
      • 1...Bf4
        • 2.Sf2#
      • 1...Bd5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 10
    • REMOVED MATES = 6
  • Sets
    • R(a);P_PINR(C)::S(J)
    • R(a);XB(E)::S(J)
    • R(a);::S(J)
    • R(a);N_SPINP(b)::S(J)
    • B(g);SBLOCK::S(J)
  • Actual
    • S(G);XP(b)
    • Threat
      • R1(I),XP(f)
    • Vars
      • Q(c);N_GUARD,P_SPINQ(c),SBLOCK,XS(G)::QAB(A),XB(h)
      • R(a);P_SPINR(a),XS(G)::S(J)
      • Q(c);::S(G)
      • R(a);::S(G)
      • Q(c);::QAB(A)+S(G),DCHECK
      • Q(c);::QAB(A)+S(G),DCHECK,XQ(c)
      • B(g);SBLOCK::QAB(A)+S(G),DCHECK
      • B(h);SBLOCK::QAB(A)+S(G),DCHECK
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