MESON Chess Problem Database

Problem Display
PID: 267336 (3B3Q/4p3/3p4/1p1k4/8/1P1N3B/2NK4/8 w - - 0 1)

Klipachev, Vladimir Panteleevich

Zadachi i Etyudi, 2012

3B3Q/4p3/3p4/1p1k4/8/1P1N3B/2NK4/8

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...e6
      • 2.Bg2#
  • Tries
    • 1.Ke3?
      • threat
        • 2.Scb4#
      • 1...b4
        • 2.Scxb4#
      • 1...Kc6!
    • 1.Se3+?
      • 1...Ke4
        • 2.Bg2#
      • 1...Kc6!
    • 1.Sd4?
      • threat
        • 2.Bg2#
      • 1...Ke4
        • 2.Bg2#
      • 1...e5!
    • 1.Sdb4+?
      • 1...Kc5
        • 2.Qc3#
        • 2.Qd4#
      • 1...Ke4!
    • 1.Bd7?
      • threat
        • 2.Qd4#
        • 2.Qh1#
      • 1...Ke4
        • 2.Qh1#
      • 1...e5!
    • 1.Bc8?
      • threat
        • 2.Qh1#
      • 1...Ke4
        • 2.Qh1#
      • 1...Kc6
        • 2.Scb4#
      • 1...e5!
    • 1.Ba5?
      • threat
        • 2.Qa8#
      • 1...Kc6
        • 2.Qa8#
      • 1...Ke4!
    • 1.Qg7?
      • threat
        • 2.Qg2#
      • 1...Ke4
        • 2.Qg2#
      • 1...e5
        • 2.Qb7#
      • 1...Kc6!
    • 1.Qh4?
      • threat
        • 2.Scb4#
      • 1...b4
        • 2.Scxb4#
        • 2.Qc4#
      • 1...Kc6!
    • 1.Qg8+?
      • 1...Ke4
        • 2.Qg2#
      • 1...e6
        • 2.Bg2#
        • 2.Qg2#
      • 1...Kc6!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qh1#
        • 2.Qa8#
      • 1...Ke4
        • 2.Qh1#
      • 1...Kc6
        • 2.Qa8#
      • 1...e5
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(d);SBLOCK::B(E)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • S(A)
      • Vars
        • P(a);::S(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(A);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(A);
      • Threat
        • B(E)
      • Vars
        • K(b);S_FLIGHT::B(E)
      • Refutation
        • P(d);
    • Try
      • S(D);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::QAB(G)
      • Refutation
        • P(d);
    • Try
      • B(E);
      • Threat
        • QAB(G)
      • Vars
        • K(b);S_FLIGHT::QAB(G)
        • K(b);N_GUARD,S_FLIGHT::S(A)
      • Refutation
        • P(d);
    • Try
      • B(F);
      • Threat
        • QAB(G)
      • Vars
        • K(b);S_FLIGHT::QAB(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • K(b);S_FLIGHT::QAB(G)
        • P(d);OGATE::QAB(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • S(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(G)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(G);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);S_FLIGHT::QAB(G)
      • P(d);::QAB(G)
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