MESON Chess Problem Database

Problem Display
PID: 164478 (K6B/p3R2n/r3p3/1BPk4/2RNpb1r/3P4/2n1p2p/1b1Q4 w - - 0 1)

Barth, Michael

StrateGems, 2015

K6B/p3R2n/r3p3/1BPk4/2RNpb1r/3P4/2n1p2p/1b1Q4

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bc6#
    • 1...Ra2
      • 2.Bc6#
    • 1...Ra3
      • 2.Bc6#
    • 1...Ra4
      • 2.Bc6#
    • 1...Ra5
      • 2.Bc6#
    • 1...Rc6
      • 2.Bxc6#
    • 1...exd3
      • 2.Qh1#
    • 1...e3
      • 2.Qh1#
  • Tries
    • 1.Sxe6?
      • threat
        • 2.dxe4#
      • 1...exd3
        • 2.Qh1#
      • 1...Bd2
        • 2.Sc7#
      • 1...Sd4
        • 2.Rxd4#
      • 1...e3
        • 2.Qh1#
      • 1...Sf6!
    • 1.Rd7+?
      • 1...Rd6
        • 2.Bc6#
      • 1...Bd6!
  • Keys
    • 1.Sc6!
      • threat
        • 2.dxe4#
      • 1...exd3
        • 2.Qh1#
      • 1...Bd2
        • 2.Rd7#
      • 1...Sd4
        • 2.Sb4#
      • 1...e3
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(i);N_GUARD::B(E)
    • R(i);N_GUARD::B(E),XR(i)
    • P(e);OGATEB,XP(B)::QAB(A)
    • P(e);OGATEB::QAB(A)
  • Tries
    • Try
      • S(D);XP(j)
      • Threat
        • QAR(A)+P(B)DCHECK,XP(e)
      • Vars
        • P(e);OGATEB,P_SPINP(e),XP(B)::QAB(A)
        • B(f);N_GUARD::S(D)
        • S(b);N_GUARD::R1(C),XS(b)
        • P(e);OGATEB::QAB(A)
      • Refutation
        • S(l);
    • Try
      • R(G);CHECK
      • Vars
        • R(i);P_SPINR(i)::B(E)
      • Refutation
        • B(f);P_SPINB(f)
  • Actual
    • S(D);
    • Threat
      • QAR(A)+P(B)DCHECK,XP(e)
    • Vars
      • P(e);OGATEB,P_SPINP(e),XP(B)::QAB(A)
      • B(f);N_GUARD::R(G)
      • S(b);N_GUARD::S(D)
      • P(e);OGATEB::QAB(A)
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