MESON Chess Problem Database

Problem Display
PID: 156632 (5rqN/4nrp1/3R2B1/4k3/4N1b1/B1n1Pp1p/1bQ5/3R1K2 w - - 0 1)

Andersson, Sven Tore

Land og Folk, 1970

5rqN/4nrp1/3R2B1/4k3/4N1b1/B1n1Pp1p/1bQ5/3R1K2

#2

9 + 11

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qxc3#
    • 1...Bxa3
      • 2.Qxc3#
    • 1...Sxe4
      • 2.Qxe4#
  • Tries
    • 1.Bxb2?
      • threat
        • 2.Bxc3#
        • 2.Qxc3#
      • 1...Sxg6
        • 2.R1d5#
      • 1...Rf5
        • 2.Bxc3#
      • 1...Bf5
        • 2.Bxc3#
      • 1...Sd5
        • 2.R1xd5#
      • 1...Sf5
        • 2.R1d5#
      • 1...Sc6
        • 2.R1d5#
      • 1...Rc8!
    • 1.Re6+?
      • 1...Bxe6
        • 2.Bd6#
      • 1...Kxe6!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sd3#
      • 1...Bxa3
        • 2.Qxc3#
      • 1...Sxg6
        • 2.Sxg6#
      • 1...Be6
        • 2.Rxe6#
      • 1...Rf5
        • 2.Sd7#
      • 1...Bf5
        • 2.Qh2#
      • 1...Sf5
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAB(C),XS(b)
    • B(a);N_GUARD,XB(D)::QAB(C),XS(b)
    • S(b);OGATE,XS(F)::QAR1(C),XS(b)
  • Tries
    • Try
      • B(D);P_PINS(b),XB(a)
      • Threat
        • DUALS(2)
      • Vars
        • S(g);N_GUARD,XB(H)::R1(A)
        • R(h);::B(D),XS(b)
        • B(e);::B(D),XS(b)
        • S(g);N_GUARD::R1(A),XS(g)
        • S(g);N_GUARD::R1(A)
      • Refutation
        • R(j);
    • Try
      • R(G);CHECK
      • Vars
        • B(e);SBLOCK,XR(G)::B(D)
      • Refutation
        • K(f);P-FLIGHT,XR(G)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • B(a);N_GUARD,XB(D)::QAB(C),XS(b)
      • S(g);XB(H)::S(I),XS(g)
      • B(e);N_GUARD::R1(G),XB(e)
      • R(h);S_CUTB(e)::S(F)
      • B(e);S_CUTR(h)::QAB(C)
      • S(g);S_CUTB(e)::R1(G)
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