MESON Chess Problem Database

Problem Display
PID: 102157 (1N2B3/B3p1Q1/2n5/k1n5/3R4/p7/1P5K/8 w - - 0 1)

Scheel, Johan

Nya Dagligt Allehanda, 1915

1N2B3/B3p1Q1/2n5/k1n5/3R4/p7/1P5K/8

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se5
      • 2.b4#
    • 1...Sd8
      • 2.b4#
  • Tries
    • 1.Bxc6?
      • threat
        • 2.b4#
      • 1...Sb3
        • 2.Ra4#
      • 1...Sd3
        • 2.Ra4#
      • 1...Sa6
        • 2.Ra4#
      • 1...axb2!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qxc5#
      • 1...Kb5
        • 2.Qxc5#
      • 1...Sxd4
        • 2.Qe1#
      • 1...Sxe5
        • 2.b4#
      • 1...Sxa7
        • 2.Qc7#
      • 1...Sxb8
        • 2.Ra4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(d);N_GUARD::P(A)
  • Tries
    • Try
      • B(G);XS(d)
      • Threat
        • P(A)
      • Vars
        • S(c);N_GUARD::R1(C)
      • Refutation
        • P(a);XP(A)
  • Actual
    • Q(E);P_PINS(c)
    • Threat
      • QAR2(E),XS(c)
    • Vars
      • K(b);P-FLIGHT::QAR1(E),XS(c)
      • S(d);N_GUARD,XR(C)::QAB(E)
      • S(d);N_GUARD,N_SPINS(c),XQ(E)::P(A)
      • S(d);XB(D)::QAB(E)
      • S(d);XS(F)::R1(C)
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