MESON Chess Problem Database

Problem Display
PID: 166874 (5B2/8/8/8/8/2Q4K/krP5/1N6 w - - 0 1)

Hermanson, Halvar

Schackvarlden, 1931

5B2/8/8/8/8/2Q4K/krP5/1N6

#2

5 + 2

15148 Sadier Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb1
      • 2.Qa3#
  • Keys
    • 1.Bg7!
      • threat
        • 2.Qxb2#
      • 1...Ka1
        • 2.Qxb2#
      • 1...Kxb1
        • 2.Qxb2#
      • 1...Rxb1
        • 2.Qa5#
      • 1...Rxc2
        • 2.Qxc2#
      • 1...Rb3
        • 2.Qxb3#
      • 1...Rb4
        • 2.Qa1#
      • 1...Rb5
        • 2.Qa1#
      • 1...Rb6
        • 2.Qa1#
      • 1...Rb7
        • 2.Qa1#
      • 1...Rb8
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • R(b);SBLOCK,XS(A)::QAR1(C)
  • Actual
    • B(E);
    • Threat
      • QAR1(C),XR(b)
    • Vars
      • K(a);P-FLIGHT,P_SPINR(b)::QAB1(C),XR(b)
      • K(a);S_FLIGHT,XS(A)::QAR1(C),XR(b)
      • R(b);SBLOCK,XS(A)::QAR(C)
      • R(b);OGATE,XP(B)::QAR2(C),XR(b)
      • R(b);N_GUARD,P_PINQ(C)::QAB1(C),XR(b)
      • R(b);OGATE::QAR1(C)
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