MESON Chess Problem Database

Problem Display
PID: 6026 (4NBNk/r5Rp/4p3/5Qn1/p6R/K4p2/8/1b4rq w - - 0 1)

Scheel, Johan

Hvar a Dag, 1926

4NBNk/r5Rp/4p3/5Qn1/p6R/K4p2/8/1b4rq

#2

7 + 10

3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Sh3
      • 2.Rhxh7#
    • 1...Se4
      • 2.Qxh7#
  • Tries
    • 1.Sh6?
      • threat
        • 2.Rg8#
      • 1...Rxg7
        • 2.Bxg7#
      • 1...Se4
        • 2.Qxh7#
      • 1...Sf7
        • 2.Rxh7#
      • 1...Sh3!
    • 1.Se7?
      • threat
        • 2.Sg6#
        • 2.Rg8#
      • 1...Qxh4
        • 2.Rg8#
      • 1...Bxf5
        • 2.Rg8#
      • 1...Sh3
        • 2.Rhxh7#
        • 2.Rgxh7#
      • 1...Se4
        • 2.Rgxh7#
        • 2.Qxh7#
      • 1...Sf7
        • 2.Rgxh7#
      • 1...Rxe7!
  • Keys
    • 1.Sgf6!
      • threat
        • 2.Rg8#
      • 1...Rxg7
        • 2.Bxg7#
      • 1...Sh3
        • 2.Rhxh7#
      • 1...Se4
        • 2.Qxh7#
      • 1...Sf7
        • 2.Rgxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(f);N_GUARD,S_CUTQ(c)::R1(B),XP(i)
    • S(f);N_GUARD,S_CUTB(a)::QAR1(C),XP(i)
  • Tries
    • Try
      • S(G);N_PINP(i)
      • Threat
        • R1(D)
      • Vars
        • R(h);OGATE,XR(D)::B(F),XR(h)
        • S(f);N_GUARD,S_CUTB(a)::QAR1(C),XP(i)
        • S(f);N_GUARD,S_CUTR(h)::R1(D),XP(i)
      • Refutation
        • S(f);
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • Q(c);N_SPINP(i),XR(B)::R1(D)
        • B(a);XQ(C)::R1(D)
        • S(f);N_GUARD::R1(D),XP(i)
      • Refutation
        • R(h);XS(G)
  • Actual
    • S(G);
    • Threat
      • R1(D)
    • Vars
      • R(h);OGATE,XR(D)::B(F),XR(h)
      • S(f);N_GUARD,S_CUTQ(c)::R1(B),XP(i)
      • S(f);N_GUARD,S_CUTB(a)::QAR1(C),XP(i)
      • S(f);N_GUARD,S_CUTR(h)::R1(D),XP(i)
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