MESON Chess Problem Database

Problem Display
PID: 194461 (8/8/2p1P3/1PP3B1/1K6/1NPkp2R/5p1b/3B1n1Q w - - 0 1)

Mikkelsen, Paul Helweg

Skakbladet, 1906

8/8/2p1P3/1PP3B1/1K6/1NPkp2R/5p1b/3B1n1Q

#2

10 + 6

15601 Albrecht-Leiss-Degener Collection 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Sc1#
      • 2.Rxe3#
    • 1...cxb5
      • 2.Qd5#
  • Tries
    • 1.Rg3?
      • 1...Bxg3
        • 2.Qh7#
      • 1...cxb5
        • 2.Qd5#
      • 1...Bg1
        • 2.Qh7#
      • 1...Sd2
        • 2.Sc1#
        • 2.Rxe3#
      • 1...Sxg3!
    • 1.Rh4?
      • threat
        • 2.Rd4#
        • 2.Qe4#
      • 1...Be5
        • 2.Qe4#
      • 1...Sd2
        • 2.Sc1#
        • 2.Rd4#
      • 1...Sg3
        • 2.Rd4#
      • 1...Bf4!
    • 1.Qf3?
      • threat
        • 2.Qf5#
      • 1...Sd2
        • 2.Sc1#
        • 2.Qxe3#
      • 1...Sg3
        • 2.Qxe3#
      • 1...Bf4!
  • Keys
    • 1.Rh8!
      • 1...cxb5
        • 2.Qd5#
      • 1...Bg1
        • 2.Rd8#
        • 2.Qh7#
      • 1...Bg3
        • 2.Qh7#
      • 1...Bf4
        • 2.Qh7#
      • 1...Be5
        • 2.Qh7#
      • 1...Bd6
        • 2.Qh7#
      • 1...Bc7
        • 2.Qh7#
      • 1...Bb8
        • 2.Qh7#
      • 1...Sd2
        • 2.Sc1#
      • 1...Sg3
        • 2.Rd8#
      • 1...e2
        • 2.Sc1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • P(f);N_GUARD,XP(G)::QAR2(B)
  • Tries
    • Try
      • R(E);
      • Vars
        • B(c);N_SPINP(e),OGATE,XR(E)::QAB(B)
        • P(f);N_GUARD,XP(G)::QAR2(B)
        • B(c);OGATE::QAB(B)
      • Refutation
        • S(a);N_SPINP(e),XR(E)
    • Try
      • R(E);N_PINP(e)
      • Threat
        • DUALS(2)
      • Vars
        • B(c);::QAB1(B)
        • S(a);::R1(E)
      • Refutation
        • B(c);
    • Try
      • Q(B);
      • Threat
        • QAB(B)
      • Vars
        • S(a);N_GUARD::QAR1(B),XP(e)
      • Refutation
        • B(c);
  • Actual
    • R(E);N_PINP(e)
    • Vars
      • P(f);N_GUARD,XP(G)::QAR2(B)
      • B(c);OGATE::QAB(B)
      • B(c);OGATE,P_PINP(H)::QAB(B)
      • S(a);SBLOCK::S(C)
      • S(a);S_CUTB(c)::R(E)
      • P(e);::S(C)
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