MESON Chess Problem Database

Problem Display
PID: 238852 (8/4RP2/8/1NP5/1Pk1N3/8/R2B4/5KQ1 w - - 0 1)

Murashev, Pavel Aleksandrovich

idee & form, 2008

8/4RP2/8/1NP5/1Pk1N3/8/R2B4/5KQ1

#2

10 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qd4#
  • Tries
    • 1.Sed6+?
      • 1...Kd3
        • 2.Re3#
        • 2.Qe3#
        • 2.Qd4#
        • 2.Qg3#
        • 2.Qg6#
      • 1...Kd5
        • 2.Qh1#
        • 2.Qg2#
      • 1...Kb3!
    • 1.Qd4+?
      • 1...Kb3
        • 2.Qd5#
      • 1...Kxb5!
    • 1.Qg2?
      • 1...Kd3
        • 2.Qe2#
      • 1...Kxb5
        • 2.Sd6#
      • 1...Kd5
        • 2.Sed6#
      • 1...Kb3!
    • 1.Qg4?
      • 1...Kb3
        • 2.Qe6#
      • 1...Kd3
        • 2.Sf2#
        • 2.Qe2#
      • 1...Kd5
        • 2.Qe6#
      • 1...Kxb5!
    • 1.Qg5?
      • 1...Kb3
        • 2.Qd5#
      • 1...Kd3
        • 2.Qd5#
      • 1...Kxb5!
    • 1.c6?
      • 1...Kd3
        • 2.Qd4#
      • 1...Kxb5
        • 2.Qc5#
      • 1...Kd5
        • 2.Qc5#
      • 1...Kb3!
  • Keys
    • 1.Qg6!
      • 1...Kb3
        • 2.Qe6#
      • 1...Kd3
        • 2.Sed6#
      • 1...Kxb5
        • 2.Qa6#
      • 1...Kd5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(B)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);S_FLIGHT,XS(G)::S(F)
        • K(a);S_FLIGHT::QAB(B)+S(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB(B)
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB(B)
        • K(a);S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • P(H);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
        • K(a);S_FLIGHT,XS(G)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAB(B)
      • K(a);S_FLIGHT::QAB(B)+S(F)
      • K(a);OGATEB,S_FLIGHT,XS(G)::QAB1(B)
      • K(a);S_FLIGHT::QAB1(B)
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