MESON Chess Problem Database

Problem Display
PID: 19158 (7b/6QB/KR2P3/3Pr3/1N2P1r1/B4p2/p1N5/1k6 w - - 0 1)

Persson, Hol Holger

Vasterbottens-Kuriren, 1933

7b/6QB/KR2P3/3Pr3/1N2P1r1/B4p2/p1N5/1k6

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Qxg1#
    • 1...Rf4
      • 2.Qg1#
    • 1...Rh4
      • 2.Qg1#
  • Tries
    • 1.Sxa2+?
      • 1...Kxa2
        • 2.Rb2#
      • 1...Kxc2!
  • Keys
    • 1.Sa1!
      • threat
        • 2.Sbc2#
      • 1...Kxa1
        • 2.Sc2#
      • 1...Rgxe4
        • 2.Qg1#
      • 1...Rexe4
        • 2.Sc6#
      • 1...Rxd5
        • 2.Sxd5#
      • 1...Rxe6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • R(d);OGATE::QAR(I),XR(d)
    • R(d);OGATE::QAR(I)
  • Tries
    • Try
      • S(C);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT,XS(C)::R1(G)
      • Refutation
        • K(a);S_FLIGHT,XS(A)
  • Actual
    • S(A);
    • Threat
      • R(G)+S(C)
    • Vars
      • K(a);P-FLIGHT,P_SPINR(e),XS(A)::S(C)
      • R(d);OGATE,P_SPINR(d),XP(D)::QAR(I)
      • R(e);P_SPINR(e),XP(D)::R(G)+S(C)
      • R(e);XP(E)::R(G)+S(C),XR(e)
      • R(e);P_PINR(G),XP(H)::R(G)+S(C)
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