MESON Chess Problem Database

Problem Display
PID: 234142 (n7/1b5K/q3p3/2P5/N3k3/1P1RBN1Q/p3p3/2rn3B w - - 0 1)

Lindquist, Carl Emil Richard

Tidskrift for Schack, 1915

n7/1b5K/q3p3/2P5/N3k3/1P1RBN1Q/p3p3/2rn3B

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd3
      • 2.Se1#
    • 1...Qxd3
      • 2.Qxe6#
    • 1...Rxc5
      • 2.Sxc5#
    • 1...Sxe3
      • 2.Rd4#
    • 1...e5
      • 2.Se1#
  • Tries
    • 1.Qxe6+?
      • 1...Kxd3
        • 2.Se1#
      • 1...Qxe6!
    • 1.Qh4+?
      • 1...Kf5
        • 2.Qf4#
      • 1...Kxd3!
    • 1.Qh5?
      • threat
        • 2.Se1#
        • 2.Se5#
        • 2.Qg6#
      • 1...Qxd3
        • 2.Qe5#
      • 1...Rxc5
        • 2.Se1#
        • 2.Se5#
        • 2.Sxc5#
      • 1...Sxe3
        • 2.Rd4#
      • 1...e1Q
        • 2.Sxe1#
        • 2.Qg6#
      • 1...e1S
        • 2.Sxe1#
        • 2.Qg6#
      • 1...e1B
        • 2.Sxe1#
        • 2.Se5#
        • 2.Qg6#
      • 1...e1R
        • 2.Sxe1#
        • 2.Qg6#
      • 1...Sb2
        • 2.Se1#
        • 2.Qg6#
      • 1...Sf2
        • 2.Qg6#
      • 1...Sc3
        • 2.Se1#
        • 2.Qg6#
      • 1...e5
        • 2.Se1#
        • 2.Sxe5#
      • 1...Kxd3!
  • Keys
    • 1.Kg8!
      • threat
        • 2.Qh7#
      • 1...Kxd3
        • 2.Se1#
      • 1...Qxd3
        • 2.Qxe6#
      • 1...Rxc5
        • 2.Sxc5#
      • 1...Sxe3
        • 2.Rd4#
      • 1...e5
        • 2.Se1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT,XR(C)::S(E)
    • Q(f);N_GUARD,SBLOCK,XR(C)::QAR2(F),XP(g)
    • R(a);XP(H)::S(G),XR(a)
    • S(b);SBLOCK,XB(D)::R1(C)
    • P(g);SBLOCK::B(A)+S(E)
  • Tries
    • Try
      • Q(F);CHECK,XP(g)
      • Vars
        • K(e);S_FLIGHT,XR(C)::S(E)
      • Refutation
        • Q(f);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR1(F)
      • Refutation
        • K(e);S_FLIGHT,XR(C)
    • Try
      • Q(F);
      • Threat
        • DUALS(3)
      • Vars
        • Q(f);SBLOCK,XR(C)::QAR1(F)
        • S(b);SBLOCK,XB(D)::R1(C)
        • S(b);::QAB(F)
      • Refutation
        • K(e);S_FLIGHT,XR(C)
  • Actual
    • K(I);S_FLIGHT
    • Threat
      • QAB(F)
    • Vars
      • K(e);S_FLIGHT,XR(C)::S(E)
      • Q(f);N_GUARD,SBLOCK,XR(C)::QAR2(F),XP(g)
      • R(a);XP(H)::S(G),XR(a)
      • S(b);SBLOCK,XB(D)::R1(C)
      • P(g);SBLOCK::B(A)+S(E)
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