MESON Chess Problem Database

Problem Display
PID: 72050 (nrb5/1R1p1p1B/3P1pp1/3N3Q/2k3P1/2pN1R2/2p5/2K3B1 w - - 0 1)

Karlstrom, Alfred Olaf

Problemisten, 1947

nrb5/1R1p1p1B/3P1pp1/3N3Q/2k3P1/2pN1R2/2p5/2K3B1

#2

10 + 10

SOLUTION

  • SOUND
  • Tries
    • 1.Se3+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Kxd3!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Qb5#
        • 2.Qc5#
        • 2.Qd5#
      • 1...Rxb7
        • 2.Qd5#
      • 1...Bxb7
        • 2.Qb5#
      • 1...Sxc7
        • 2.Qc5#
      • 1...gxh5
        • 2.Rf4#
      • 1...Sb6
        • 2.Qb5#
      • 1...f5
        • 2.Se5#
      • 1...g5
        • 2.Qxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(G)
      • Refutation
        • K(c);P_SPINP(e),S_FLIGHT,XS(C)
  • Actual
    • S(F);
    • Threat
      • DUALS(3)
    • Vars
      • R(i);XR(I)::QAB1(G)
      • B(j);XR(I)::QAB1(G)
      • S(h);XS(F)::QAR1(G)
      • P(e);XQ(G)::R(D)
      • S(h);::QAB1(G)
      • P(d);N_GUARD::S(C)
      • P(e);OGATE::QAB(G),XP(g)
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