MESON Chess Problem Database

Problem Display
PID: 183706 (8/1Q6/2R3P1/3N4/4kP2/3NP2K/8/6B1 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Murashev, Pavel Aleksandrovich

The Problemist, 2018

8/1Q6/2R3P1/3N4/4kP2/3NP2K/8/6B1

#2

9 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Se1?
      • 1...Kf5
        • 2.Qb1#
      • 1...Kxd5!
    • 1.Sf2+?
      • 1...Kxd5
        • 2.Qb5#
        • 2.Qd7#
      • 1...Kf5
        • 2.Se7#
        • 2.Rf6#
        • 2.Qc8#
        • 2.Qb1#
        • 2.Qd7#
        • 2.Qf7#
        • 2.e4#
      • 1...Kf3!
    • 1.Se5?
      • 1...Kf5
        • 2.Qb1#
      • 1...Kxd5!
    • 1.Sc3+?
      • 1...Kf3
        • 2.Se1#
        • 2.Se5#
        • 2.Rc4#
        • 2.Rc5#
        • 2.Ra6#
        • 2.Rb6#
        • 2.Rd6#
        • 2.Re6#
        • 2.Rf6#
        • 2.Rc7#
        • 2.Rc8#
      • 1...Kf5
        • 2.Qc8#
        • 2.Qb5#
        • 2.Qd7#
        • 2.Qf7#
        • 2.e4#
      • 1...Kxd3!
    • 1.S5b4?
      • threat
        • 2.Rc5#
        • 2.Rf6#
      • 1...Kf3
        • 2.Rc2#
      • 1...Kf5!
    • 1.Se7?
      • threat
        • 2.Rc3#
        • 2.Rd6#
      • 1...Kf3
        • 2.Rc2#
      • 1...Kxd3!
    • 1.Rc2?
      • 1...Kxd3
        • 2.Sb4#
      • 1...Kf3
        • 2.Sc3#
        • 2.S5b4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Sc7#
        • 2.Se7#
      • 1...Kf5!
    • 1.Rc4+?
      • 1...Kf3
        • 2.Sc3#
      • 1...Kf5
        • 2.Qf7#
      • 1...Kxd3!
    • 1.Ra6?
      • 1...Kf3
        • 2.Sc3#
      • 1...Kf5
        • 2.Se7#
      • 1...Kxd3!
    • 1.Rb6?
      • 1...Kf3
        • 2.Sc3#
      • 1...Kf5
        • 2.Se7#
      • 1...Kxd3!
    • 1.Rd6?
      • threat
        • 2.Se7#
      • 1...Kf3
        • 2.Sc3#
      • 1...Kf5
        • 2.Se7#
      • 1...Kxd3!
    • 1.Re6+?
      • 1...Kf3
        • 2.Sc3#
      • 1...Kf5
        • 2.Qf7#
      • 1...Kxd3!
    • 1.Rf6?
      • threat
        • 2.S5b4#
      • 1...Kf3
        • 2.Sc3#
      • 1...Kxd3!
    • 1.Qb1?
      • 1...Kxd5
        • 2.Sb4#
      • 1...Kf5
        • 2.Sc1#
        • 2.Se1#
        • 2.Sb2#
        • 2.Sf2#
        • 2.S3b4#
        • 2.Sc5#
        • 2.Se5#
      • 1...Kf3!
    • 1.Qb5?
      • 1...Kf5
        • 2.Sc3#
      • 1...Kf3!
  • Keys
    • 1.Qb2!
      • 1...Kxd3
        • 2.Qc2#
      • 1...Kf3
        • 2.Qg2#
      • 1...Kxd5
        • 2.Qg2#
      • 1...Kf5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT::QAB(I)
      • Refutation
        • K(a);S_FLIGHT,XS(F)
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT::QAB(I)
      • Refutation
        • K(a);S_FLIGHT,XS(F)
    • Try
      • S(F);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);S_FLIGHT::QAB(I)+R(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);S_FLIGHT::QAB(I)+R(G)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • R(G);
      • Vars
        • K(a);S_FLIGHT,XS(B)::S(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(G);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(I)+S(F)
        • K(a);S_FLIGHT::QAR2(I)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • R(G);
      • Vars
        • K(a);S_FLIGHT::QAB(I)+S(F)
        • K(a);S_FLIGHT::S(F)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • R(G);
      • Vars
        • K(a);S_FLIGHT::QAB(I)+S(F)
        • K(a);S_FLIGHT::S(F)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • R(G);
      • Threat
        • QAB(I)+S(F)
      • Vars
        • K(a);S_FLIGHT::QAB(I)+S(F)
        • K(a);S_FLIGHT::S(F)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • R(G);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(I)+S(F)
        • K(a);S_FLIGHT::QAR2(I)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • R(G);
      • Threat
        • QAB(I)+S(F)
      • Vars
        • K(a);S_FLIGHT::QAB(I)+S(F)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • Q(I);
      • Vars
        • K(a);S_FLIGHT,XS(F)::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(a);S_FLIGHT::QAR(I)+S(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(I);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(B)::QAB1(I)
      • K(a);S_FLIGHT::QAB1(I)
      • K(a);S_FLIGHT,XS(F)::QAB(I)
      • K(a);S_FLIGHT::QAR1(I)
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