MESON Chess Problem Database

Problem Display
PID: 233782 (8/2b4p/4Q1pN/3pP3/B3k3/3pPn2/2P2K2/q2N3b w - - 0 1)

Sarkits, Anatoly L

Freie Presse, 2006

8/2b4p/4Q1pN/3pP3/B3k3/3pPn2/2P2K2/q2N3b

#2

8 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Sxc3#
    • 1...Qxe5
      • 2.Sc3#
    • 1...Qb1
      • 2.Sc3#
    • 1...Qc1
      • 2.Sc3#
    • 1...Qa2
      • 2.Sc3#
    • 1...Qxa4
      • 2.Sc3#
    • 1...dxc2
      • 2.Bxc2#
    • 1...d4
      • 2.Bc6#
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Sf6#
      • 1...dxc2
        • 2.Bxc2#
      • 1...Bd8!
    • 1.Sf5?
      • threat
        • 2.Sg3#
      • 1...dxc2
        • 2.Bxc2#
      • 1...gxf5!
    • 1.Sg8?
      • threat
        • 2.Sf6#
      • 1...dxc2
        • 2.Bxc2#
      • 1...Bd8!
    • 1.Qxg6+?
      • 1...Kxe5
        • 2.Sg4#
        • 2.Sf7#
      • 1...hxg6!
  • Keys
    • 1.Sf7!
      • threat
        • 2.Qg4#
      • 1...Qxe5
        • 2.Sc3#
      • 1...Bxe5
        • 2.Sd6#
      • 1...Sxe5
        • 2.Sg5#
      • 1...dxc2
        • 2.Bxc2#
      • 1...Sh2
        • 2.Sg5#
      • 1...d4
        • 2.Bc6#
      • 1...h5
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD::S(A),XQ(a)
    • Q(a);N_GUARD,P_SPINQ(a),XP(F)::S(A)
    • Q(a);N_GUARD::S(A)
    • Q(a);N_GUARD,P_PINP(B)::S(A)
    • Q(a);N_GUARD,XB(E)::S(A)
    • P(c);OGATE,XP(B)::B(E),XP(c)
    • P(f);OGATEB::B(E)
    • P(g);N_GUARD::QAB1(G)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(H)
      • Vars
        • P(c);OGATE,XP(B)::B(E),XP(c)
      • Refutation
        • B(h);
    • Try
      • S(H);
      • Threat
        • S(H)
      • Vars
        • P(c);OGATE,XP(B)::B(E),XP(c)
      • Refutation
        • P(g);XS(H)
    • Try
      • S(H);
      • Threat
        • S(H)
      • Vars
        • P(c);OGATE,XP(B)::B(E),XP(c)
      • Refutation
        • B(h);
    • Try
      • Q(G);CHECK,XP(g)
      • Refutation
        • P(i);XQ(G)
  • Actual
    • S(H);
    • Threat
      • QAR2(G)
    • Vars
      • Q(a);N_GUARD,P_SPINQ(a),XP(F)::S(A)
      • B(h);N_GUARD,P_SPINB(h),XP(F)::S(H)
      • S(d);N_GUARD,P_SPINS(d),XP(F)::S(H)
      • P(c);OGATE,XP(B)::B(E),XP(c)
      • S(d);N_GUARD::S(H)
      • P(f);OGATEB::B(E)
      • P(i);N_GUARD::QAB(G),XP(g)
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