MESON Chess Problem Database

Problem Display
PID: 197302 (5B2/1p4p1/p7/2RNp2p/r2k4/6QK/2P2pP1/2nnb3 w - - 0 1)

Kuzovkov, Aleksandr S

Zadachi i Etyudi, 1996

5B2/1p4p1/p7/2RNp2p/r2k4/6QK/2P2pP1/2nnb3

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Qd3#
    • 1...Se2
      • 2.Qd3#
    • 1...Sb3
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sb2
      • 2.Qe3#
    • 1...Sc3
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...e4
      • 2.Qxg7#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Qxe5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...e4!
    • 1.Se3?
      • threat
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qxe5#
      • 1...e4
        • 2.Sf5#
      • 1...Sd3!
    • 1.Sc7?
      • threat
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qxe5#
      • 1...e4
        • 2.Se6#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Ra3!
    • 1.Bd6?
      • threat
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qxe5#
      • 1...e4
        • 2.Qe5#
        • 2.Qxg7#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Ra3!
    • 1.Qg4+?
      • 1...e4
        • 2.Qxg7#
      • 1...hxg4+!
    • 1.c3+?
      • 1...Ke4
        • 2.Qf3#
        • 2.Qg6#
      • 1...Sxc3
        • 2.Qe3#
      • 1...Bxc3!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qxe5#
      • 1...e4
        • 2.Rd5#
      • 1...Ra3
        • 2.Rc4#
      • 1...Sd3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • S(a);N_GUARD::QAR1(C)
    • S(a);N_GUARD::QAR1(C),XS(a)
    • S(b);N_GUARD::QAB1(C)
    • S(b);N_GUARD::QAB1(C),XS(b)
    • P(g);OGATEB,SBLOCK::QAB(C),XP(k)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(C),XP(g)
      • Vars
        • S(a);N_GUARD::QAR1(C),XS(a)
      • Refutation
        • P(g);
    • Try
      • S(F);
      • Threat
        • QAB1(C),XP(g)
      • Vars
        • K(f);P-FLIGHT::QAR1(C),XP(g)
        • P(g);SBLOCK::S(F)
      • Refutation
        • S(a);
    • Try
      • S(F);
      • Threat
        • QAB1(C),XP(g)
      • Vars
        • K(f);P-FLIGHT::QAR1(C),XP(g)
        • P(g);SBLOCK::S(F)
        • S(a);N_GUARD::QAR1(C),XS(a)
      • Refutation
        • R(e);P_PINQ(C)
    • Try
      • B(G);
      • Threat
        • QAB1(C),XP(g)
      • Vars
        • K(f);P-FLIGHT::QAR1(C),XP(g)
        • S(a);N_GUARD::QAR1(C),XS(a)
      • Refutation
        • R(e);P_PINQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • P(g);OGATEB,P_SPINP(g),SBLOCK::QAB(C),XP(k)
      • Refutation
        • P(h);CHECK,XQ(C)
    • Try
      • P(A);CHECK
      • Vars
        • S(b);XP(A)::QAB1(C)
      • Refutation
        • B(c);XP(A)
  • Actual
    • S(F);
    • Threat
      • QAB1(C),XP(g)
    • Vars
      • K(f);P-FLIGHT::QAR1(C),XP(g)
      • P(g);SBLOCK::R1(E)
      • R(e);N_GUARD,P_PINQ(C)::R1(E)
      • S(a);N_GUARD::QAR1(C),XS(a)
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