MESON Chess Problem Database

Problem Display
PID: 233921 (rn2Bk1n/4R2K/3P2pp/2RrN3/8/1Qq5/8/8 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Skakbladet, 1942

rn2Bk1n/4R2K/3P2pp/2RrN3/8/1Qq5/8/8

#2

7 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qg8#
    • 1...Rd2
      • 2.Qg8#
    • 1...Rd3
      • 2.Qg8#
    • 1...Rd4
      • 2.Qg8#
    • 1...Rxc5
      • 2.Qg8#
    • 1...Rxe5
      • 2.Qg8#
    • 1...Sa6
      • 2.Sd7#
    • 1...Sc6
      • 2.Sd7#
    • 1...Sd7
      • 2.Sxd7#
    • 1...Sf7
      • 2.Sxg6#
  • Tries
    • 1.Bb5?
      • threat
        • 2.Re8#
      • 1...Qxe5
        • 2.Rc8#
      • 1...Rxe5
        • 2.Qg8#
      • 1...Sa6
        • 2.Sd7#
      • 1...Sc6
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#
      • 1...Ra7!
    • 1.Bc6?
      • threat
        • 2.Re8#
      • 1...Rxe5
        • 2.Qg8#
      • 1...Sxc6
        • 2.Sd7#
      • 1...Ra7
        • 2.Qxb8#
      • 1...Sa6
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#
      • 1...Qxe5!
    • 1.Bxg6?
      • threat
        • 2.Re8#
      • 1...Qxe5
        • 2.Rc8#
      • 1...Rxe5
        • 2.Qg8#
      • 1...Sxg6
        • 2.Sxg6#
      • 1...Ra7
        • 2.Qxb8#
      • 1...Sa6
        • 2.Sd7#
      • 1...Sc6
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#
      • 1...Sf7!
    • 1.Bf7?
      • threat
        • 2.Re8#
      • 1...Qxe5
        • 2.Rc8#
      • 1...Sxf7
        • 2.Sxg6#
      • 1...Sa6
        • 2.Sd7#
      • 1...Sc6
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#
      • 1...Rxe5!
    • 1.Rg7?
      • threat
        • 2.Rg8#
      • 1...Kxe8
        • 2.Rg8#
      • 1...Rxd6
        • 2.Qg8#
      • 1...Ra7!
  • Keys
    • 1.Ba4!
      • threat
        • 2.Re8#
      • 1...Qxe5
        • 2.Rc8#
      • 1...Rxe5
        • 2.Qg8#
      • 1...Rxa4
        • 2.Qxb8#
      • 1...Ra7
        • 2.Qxb8#
      • 1...Sa6
        • 2.Sd7#
      • 1...Sc6
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(b);OGATE::QAR1(A)
    • R(b);OGATE,XR(B)::QAR1(A)
    • R(b);OGATE,XS(C)::QAR1(A)
    • S(f);N_GUARD::S(C)
    • S(f);N_GUARD::S(C),XS(f)
    • S(h);N_GUARD::S(C),XP(c)
  • Tries
    • Try
      • B(G);
      • Threat
        • R1(E)
      • Vars
        • Q(a);N_GUARD,XS(C)::R(B)
        • R(b);OGATE,XS(C)::QAR1(A)
        • S(f);N_GUARD::S(C)
        • S(f);N_GUARD::S(C),XS(f)
      • Refutation
        • R(e);P_PINR(E)
    • Try
      • B(G);
      • Threat
        • R1(E)
      • Vars
        • R(b);OGATE,XS(C)::QAR1(A)
        • S(f);N_GUARD,XB(G)::S(C)
        • R(e);N_GUARD,P_PINR(E)::QAR(A),XS(f)
        • S(f);N_GUARD::S(C)
        • S(f);N_GUARD::S(C),XS(f)
      • Refutation
        • Q(a);XS(C)
    • Try
      • B(G);XP(c)
      • Threat
        • R1(E)
      • Vars
        • Q(a);N_GUARD,XS(C)::R(B)
        • R(b);OGATE,XS(C)::QAR1(A)
        • S(h);XB(G)::S(C),XS(h)
        • R(e);N_GUARD,P_PINR(E)::QAR(A),XS(f)
        • S(f);N_GUARD::S(C)
        • S(f);N_GUARD::S(C),XS(f)
      • Refutation
        • S(h);
    • Try
      • B(G);
      • Threat
        • R1(E)
      • Vars
        • Q(a);N_GUARD,XS(C)::R(B)
        • S(h);N_GUARD,XB(G)::S(C),XP(c)
        • S(f);N_GUARD::S(C)
        • S(f);N_GUARD::S(C),XS(f)
      • Refutation
        • R(b);XS(C)
    • Try
      • R(E);
      • Threat
        • R1(E)
      • Vars
        • K(g);P-FLIGHT,XB(G)::R(E)
        • R(b);OGATE,XP(D)::QAR1(A)
      • Refutation
        • R(e);P_PINR(E)
  • Actual
    • B(G);
    • Threat
      • R1(E)
    • Vars
      • Q(a);N_GUARD,XS(C)::R(B)
      • R(b);OGATE,XS(C)::QAR1(A)
      • R(e);N_GUARD,XB(G)::QAR(A),XS(f)
      • R(e);N_GUARD,P_PINR(E)::QAR(A),XS(f)
      • S(f);N_GUARD::S(C)
      • S(f);N_GUARD::S(C),XS(f)
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