MESON Chess Problem Database

Problem Display
PID: 181948 (r7/3N4/n6q/1B1ppP2/RpNk2p1/1P2p3/K1Q5/b5B1 w - - 0 1)

Hurme, Harri Heikki Veikko

Syvaniemi, Janne

15/16 Place, 10. WCCT, 2016-2017

r7/3N4/n6q/1B1ppP2/RpNk2p1/1P2p3/K1Q5/b5B1

#2

9 + 10

16140 10. WCCT Award 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qg7
      • 2.Bxe3#
    • 1...Qf8
      • 2.Bxe3#
    • 1...Qh1
      • 2.Bxe3#
    • 1...Qh2
      • 2.Bxe3#
    • 1...Qh4
      • 2.Bxe3#
    • 1...Qh5
      • 2.Bxe3#
    • 1...Qb6
      • 2.Bxe3#
    • 1...Qc6
      • 2.Bxe3#
    • 1...Qd6
      • 2.Bxe3#
    • 1...Qe6
      • 2.Bxe3#
    • 1...Qf6
      • 2.Bxe3#
    • 1...Qg6
      • 2.Bxe3#
    • 1...Qh7
      • 2.Bxe3#
    • 1...Qh8
      • 2.Bxe3#
    • 1...dxc4
      • 2.Qxc4#
    • 1...e4
      • 2.Qd2#
  • Tries
    • 1.Sb2?
      • threat
        • 2.Qd3#
      • 1...e4
        • 2.Qd2#
      • 1...Sc5!
    • 1.Sd2?
      • threat
        • 2.Qd3#
      • 1...Sc5
        • 2.Qxc5#
      • 1...e4!
    • 1.Sa3?
      • threat
        • 2.Qd3#
      • 1...Sc5
        • 2.Rxb4#
      • 1...e4
        • 2.Qd2#
      • 1...Qh2!
    • 1.Scxe5?
      • threat
        • 2.Qd3#
      • 1...Qh2
        • 2.Sc6#
      • 1...Sc5!
    • 1.Sd6?
      • threat
        • 2.Qd3#
        • 2.Qd2#
      • 1...Qxd6
        • 2.Qd3#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Bc3
        • 2.Qd3#
      • 1...e4
        • 2.Qd2#
      • 1...Qh2!
  • Keys
    • 1.Sa5!
      • threat
        • 2.Qd3#
      • 1...Qh2
        • 2.Sc6#
      • 1...Sc5
        • 2.Rxb4#
      • 1...e4
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 14
  • Sets
    • Q(i);N_GUARD::B(A),XP(b)
    • Q(i);N_GUARD,P_PINQ(C)::B(A),XP(b)
    • P(f);OGATE,XS(F)::QAR1(C),XP(f)
    • P(g);SBLOCK::QAR2(C)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(C)
      • Vars
        • P(g);SBLOCK::QAR2(C)
      • Refutation
        • S(h);P_PINR(E)
    • Try
      • S(F);
      • Threat
        • QAR1(C)
      • Vars
        • S(h);N_GUARD,P_PINR(E)::QAB1(C),XS(h)
      • Refutation
        • P(g);
    • Try
      • S(F);
      • Threat
        • QAR1(C)
      • Vars
        • S(h);N_GUARD::R(E),XP(c)
        • P(g);SBLOCK::QAR2(C)
      • Refutation
        • Q(i);P_PINQ(C)
    • Try
      • S(F);XP(g)
      • Threat
        • QAR1(C)
      • Vars
        • Q(i);N_GUARD,P_PINQ(C)::S(F)
      • Refutation
        • S(h);P_PINR(E)
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • Q(i);XS(F)::QAR1(C)
        • S(h);N_GUARD,P_PINR(E)::QAB1(C),XS(h)
        • B(a);::QAR1(C)
        • P(g);::QAR2(C)
      • Refutation
        • Q(i);P_PINQ(C)
  • Actual
    • S(F);
    • Threat
      • QAR1(C)
    • Vars
      • Q(i);N_GUARD,P_PINQ(C)::S(F)
      • S(h);N_GUARD::R(E),XP(c)
      • P(g);SBLOCK::QAR2(C)
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