MESON Chess Problem Database

Problem Display
PID: 241437 (8/B1p2p1q/r1NkB2Q/7p/b1R5/4rp2/8/6bK w - - 0 1)

Hjelle, David

Arbejder-Skak, 1952

8/B1p2p1q/r1NkB2Q/7p/b1R5/4rp2/8/6bK

#2

6 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qf4+?
      • 1...Re5
        • 2.Qxe5#
      • 1...Kxe6!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qe7#
      • 1...Rxe6
        • 2.Qd8#
      • 1...Rxc6
        • 2.Rd4#
      • 1...Bxc6
        • 2.Bc5#
      • 1...fxe6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::QAB1(E),XR(b)
      • Refutation
        • K(g);P-FLIGHT,XB(D)
  • Actual
    • Q(E);
    • Threat
      • QAB1(E)
    • Vars
      • R(b);P_SPINR(b),SBLOCK,XB(D)::QAR2(E)
      • R(f);SBLOCK,XS(C)::R(B)
      • B(d);SBLOCK,XS(C)::B(F)
      • P(i);P_SPINP(i),SBLOCK,XB(D)::QAR2(E)
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