MESON Chess Problem Database

Problem Display
PID: 160422 (8/5Q2/5p2/1pppP2R/1n1kP3/1P1p2B1/3K1PB1/6b1 w - - 0 1)

Simadhinata, Januarta (Siem Giok Liam)

British Chess Magazine, 2008

8/5Q2/5p2/1pppP2R/1n1kP3/1P1p2B1/3K1PB1/6b1

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf2
      • 2.Bxf2#
    • 1...Sa2
      • 2.Qxd5#
    • 1...Sc2
      • 2.Qxd5#
    • 1...Sa6
      • 2.Qxd5#
    • 1...Sc6
      • 2.Qxd5#
    • 1...c4
      • 2.Qa7#
    • 1...fxe5
      • 2.Bxe5#
  • Tries
    • 1.Rh4?
      • threat
        • 2.exd5#
      • 1...dxe4
        • 2.Rxe4#
      • 1...c4
        • 2.Qa7#
      • 1...f5
        • 2.exf5#
      • 1...fxe5!
    • 1.Qxf6?
      • threat
        • 2.e6#
      • 1...c4
        • 2.Qb6#
      • 1...Sc6!
    • 1.exd5?
      • threat
        • 2.Rh4#
      • 1...Sxd5
        • 2.Qxd5#
      • 1...fxe5
        • 2.Bxe5#
      • 1...c4
        • 2.Qa7#
      • 1...f5!
    • 1.exf6?
      • threat
        • 2.Be5#
      • 1...c4
        • 2.Qa7#
      • 1...Sc6
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Bh2!
  • Keys
    • 1.e6!
      • threat
        • 2.Qxf6#
      • 1...c4
        • 2.Qa7#
      • 1...Sc6
        • 2.Rxd5#
      • 1...f5
        • 2.Qf6#
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • B(a);OGATE,XP(B)::B(E),XB(a)
    • S(c);N_GUARD::QAR1(I),XP(g)
    • P(f);OGATEB::QAB(I)
    • P(h);OGATE,XP(G)::B(E),XP(h)
  • Tries
    • Try
      • R(H);
      • Threat
        • R(H)+P(F),XP(g)
      • Vars
        • P(g);OGATE,P_SPINP(g),XP(F)::R1(H),XP(g)
        • P(f);OGATEB::QAB(I)
        • P(h);OGATE::R(H)+P(F),XP(h)
      • Refutation
        • P(h);XP(G)
    • Try
      • Q(I);XP(h)
      • Threat
        • QAB(I)+P(G)
      • Vars
        • P(f);OGATEB::QAB(I)
      • Refutation
        • S(c);
    • Try
      • P(F);XP(g)
      • Threat
        • R(H)
      • Vars
        • S(c);OGATE,XP(F)::QAR1(I),XS(c)
        • P(h);OGATE,XP(G)::B(E),XP(h)
        • P(f);OGATEB::QAB(I)
      • Refutation
        • P(h);
    • Try
      • P(G);XP(h)
      • Threat
        • B(E)
      • Vars
        • P(f);OGATEB::QAB(I)
      • Refutation
        • B(a);
  • Actual
    • P(G);
    • Threat
      • QAB(I),XP(h)
    • Vars
      • P(f);OGATEB::QAB(I)
      • S(c);N_GUARD::R1(H),XP(g)
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