MESON Chess Problem Database

Problem Display
PID: 238171 (8/K7/Q3P3/3P3N/3kP3/8/1R3N2/5B2 w - - 0 1)

Murashev, Pavel Aleksandrovich

Pat a Mat, 2008

8/K7/Q3P3/3P3N/3kP3/8/1R3N2/5B2

#2

9 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qd3#
    • 1...Kc5
      • 2.Qb6#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Qc4#
      • 1...Kxe4
        • 2.Qd3#
      • 1...Kc5
        • 2.Qb6#
      • 1...Kc3!
    • 1.Ra2?
      • 1...Kc3
        • 2.Qc4#
      • 1...Ke3
        • 2.Qd3#
      • 1...Kc5
        • 2.Qb6#
      • 1...Ke5!
    • 1.Rc2?
      • 1...Ke3
        • 2.Qd3#
      • 1...Ke5!
    • 1.Rb3?
      • 1...Kc5
        • 2.Qb6#
      • 1...Ke5!
    • 1.Rb4+?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kc5
        • 2.Sd3#
        • 2.Rc4#
        • 2.Qb6#
      • 1...Ke5
        • 2.Sd3#
        • 2.Sg4#
      • 1...Kc3!
    • 1.Rb6?
      • 1...Kc3
        • 2.Qd3#
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke5
        • 2.Qa1#
      • 1...Ke3!
    • 1.Qc4+?
      • 1...Ke3
        • 2.Qd3#
        • 2.Qc3#
      • 1...Ke5!
    • 1.Qb5?
      • 1...Kc3
        • 2.Qb4#
      • 1...Ke3
        • 2.Qd3#
      • 1...Ke5!
    • 1.Qc8?
      • 1...Ke3
        • 2.Qc3#
      • 1...Ke5!
    • 1.Qa5?
      • 1...Ke3
        • 2.Qc3#
      • 1...Ke5!
    • 1.Qb6+?
      • 1...Kc3
        • 2.Sd1#
        • 2.Qb4#
      • 1...Ke5!
    • 1.Qc6?
      • 1...Ke3
        • 2.Qc3#
      • 1...Ke5!
    • 1.Qd6?
      • 1...Kc3
        • 2.Qb4#
        • 2.Qe5#
      • 1...Ke3!
  • Keys
    • 1.e7!
      • 1...Kc3
        • 2.Qf6#
      • 1...Ke3
        • 2.Qd3#
      • 1...Kc5
        • 2.Qb6#
      • 1...Ke5
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(G)
    • K(a);S_FLIGHT::QAB1(G)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(G)
      • Vars
        • K(a);P-FLIGHT,XP(D)::QAB1(G)
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(G)
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(G)
        • K(a);S_FLIGHT::QAB(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
        • K(a);S_FLIGHT::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);S_FLIGHT::QAR2(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);S_FLIGHT::QAR2(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);S_FLIGHT::QAR2(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • P(H);
    • Vars
      • K(a);S_FLIGHT::QAB(G)
      • K(a);S_FLIGHT::QAR1(G)
      • K(a);S_FLIGHT::QAB1(G)
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