MESON Chess Problem Database

Problem Display
PID: 276273 (6Kn/3Q4/1R2N3/6p1/1pbBk1P1/1p6/2r1P2p/1B1N1Rb1 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Mat, 1981

6Kn/3Q4/1R2N3/6p1/1pbBk1P1/1p6/2r1P2p/1B1N1Rb1

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bf2
      • 2.Sxf2#
    • 1...Bxd4
      • 2.Qxd4#
    • 1...Bxe2
      • 2.Sc5#
    • 1...Bd3
      • 2.Sxg5#
    • 1...Bb5
      • 2.Sc5#
      • 2.Sxg5#
    • 1...Ba6
      • 2.Sc5#
      • 2.Sxg5#
      • 2.Qc6#
    • 1...Bxe6+
      • 2.Rxe6#
    • 1...Sf7
      • 2.Sc5#
  • Tries
    • 1.Kg7?
      • threat
        • 2.Sc5#
        • 2.Sxg5#
      • 1...Bxd4+
        • 2.Qxd4#
      • 1...Bxe2
        • 2.Sc5#
      • 1...Bxe6
        • 2.Rxe6#
      • 1...Bf2
        • 2.Sxf2#
      • 1...Be3
        • 2.Sc5#
      • 1...Bd3
        • 2.Sxg5#
      • 1...Sf7
        • 2.Sc5#
      • 1...Bd5!
    • 1.Bxc2+?
      • 1...Bd3
        • 2.Sc5#
        • 2.Sxg5#
        • 2.Bxd3#
        • 2.Qc6#
        • 2.Qb7#
        • 2.exd3#
      • 1...bxc2!
    • 1.Rf5?
      • threat
        • 2.Re5#
      • 1...Bxe6+
        • 2.Rxe6#
      • 1...Bxd4
        • 2.Qxd4#
      • 1...Bxe2
        • 2.Sc5#
      • 1...Sf7
        • 2.Sc5#
      • 1...Sg6!
    • 1.Qh7+?
      • 1...Kd5
        • 2.Qf5#
        • 2.Qb7#
        • 2.e4#
      • 1...Sg6!
  • Keys
    • 1.Rxb4!
      • threat
        • 2.Sc3#
      • 1...Bxe6+
        • 2.Qxe6#
      • 1...Bxd4
        • 2.Qxd4#
      • 1...Bxe2
        • 2.Sc5#
      • 1...Bd3
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::S(B),XB(a)
    • B(a);OGATE,XB(E)::QAR1(I),XB(a)
    • B(f);N_PINS(H),XP(D)::S(H)
    • B(f);N_PINS(H),N_SPINR(b)::S(H),XP(h)
    • B(f);CHECK,OGATE,XS(H)::R(G),XB(f)
    • S(i);N_PINS(H)::S(H)
  • Tries
    • Try
      • K(J);N_SPINS(H),P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • B(a);CHECK,OGATE,XB(E)::QAR1(I),XB(a)
        • B(f);XP(D)::S(H)
        • B(f);OGATE,XS(H)::R(G),XB(f)
        • B(a);N_GUARD::S(B),XB(a)
        • B(a);::S(H)
        • B(f);N_SPINR(b)::S(H),XP(h)
        • S(i);::S(H)
      • Refutation
        • B(f);
    • Try
      • B(A);CHECK,XR(b)
      • Refutation
        • P(d);XB(A)
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • B(f);CHECK,OGATE,XS(H)::R(G),XB(f)
        • B(a);OGATE,XB(E)::QAR1(I),XB(a)
        • B(f);N_PINS(H),XP(D)::S(H)
        • S(i);N_PINS(H)::S(H)
      • Refutation
        • S(i);
    • Try
      • Q(I);CHECK
      • Refutation
        • S(i);P_SPINS(i)
  • Actual
    • R(G);XP(e)
    • Threat
      • S(B)
    • Vars
      • B(f);CHECK,OGATE,XS(H)::QAR2(I),XB(f)
      • B(a);OGATE,XB(E)::QAR1(I),XB(a)
      • B(f);N_PINS(H),XP(D)::S(H)
      • B(f);N_PINS(H),N_SPINR(b)::S(H),XP(h)
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