MESON Chess Problem Database

Problem Display
PID: 71152 (8/8/2pPR3/2NkpPp1/3P2rR/1P4P1/1nN1Pn2/Q4K2 w - - 0 1)

Hjelle, David

Chess, 1951

8/8/2pPR3/2NkpPp1/3P2rR/1P4P1/1nN1Pn2/Q4K2

#2

12 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg3
      • 2.Sb4#
    • 1...Sbd1
      • 2.Sb4#
    • 1...Sbd3
      • 2.Se3#
    • 1...Sa4
      • 2.Se3#
      • 2.Sb4#
    • 1...Sc4
      • 2.Sb4#
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sf6#
      • 1...Ke4
        • 2.Rxe5#
      • 1...Rxd4
        • 2.Se3#
      • 1...exd4
        • 2.Sb4#
      • 1...c5
        • 2.Qa8#
      • 1...Se4
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • R(c);XP(F)::S(C)
    • S(a);::S(C)
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • K(d);P_SPINP(e),P_SPINR(c),S_FLIGHT::R1(L),XP(e)
      • R(c);XP(G)::S(C)
      • P(e);SBLOCK,XP(G)::S(C)
      • P(g);OGATEB::QAB(A)
      • S(b);SBLOCK::S(I)
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