MESON Chess Problem Database

Problem Display
PID: 272925 (K2N2N1/2R1B2p/8/3pk3/1p1R4/1bb5/4pPB1/1Q6 w - - 0 1)

Murashev, Pavel Aleksandrovich

Mosiashvili-75 JT (Kudesnik), 2023

K2N2N1/2R1B2p/8/3pk3/1p1R4/1bb5/4pPB1/1Q6

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Bf6#
  • Tries
    • 1.Sf7+?
      • 1...Kxd4
        • 2.Bf6#
      • 1...Ke6!
    • 1.Bh3?
      • threat
        • 2.Sc6#
      • 1...Kxd4
        • 2.Bf6#
      • 1...Bxd4
        • 2.Qf5#
      • 1...Ba4!
    • 1.Bd6+?
      • 1...Kxd4
        • 2.Se6#
      • 1...Kxd6!
    • 1.Re4+?
      • 1...dxe4
        • 2.Qxe4#
      • 1...Kf5!
    • 1.Rxd5+?
      • 1...Kf4
        • 2.Qe4#
        • 2.Qf5#
      • 1...Bxd5+!
    • 1.Rc6?
      • threat
        • 2.Bf6#
      • 1...Kxd4
        • 2.Bf6#
      • 1...Bxd4
        • 2.Bd6#
      • 1...Bc2!
    • 1.Qf5+?
      • 1...Kxd4
        • 2.Se6#
        • 2.Bf6#
      • 1...Kxf5!
    • 1.Qg6?
      • threat
        • 2.Sc6#
        • 2.Qf6#
      • 1...Kxd4
        • 2.Bf6#
      • 1...Bxd4
        • 2.Bd6#
        • 2.Qg5#
        • 2.Qf6#
      • 1...Ba4
        • 2.Qf6#
      • 1...hxg6!
    • 1.Qc1?
      • threat
        • 2.Qf4#
      • 1...Kxd4
        • 2.Qe3#
      • 1...Kf5
        • 2.Qg5#
      • 1...Bxd4
        • 2.Qg5#
      • 1...Bd2!
  • Keys
    • 1.Rd7!
      • threat
        • 2.Bf6#
      • 1...Kxd4
        • 2.Qe4#
      • 1...Bxd4
        • 2.Bd6#
      • 1...Bc2
        • 2.R7xd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(f);N_GUARD,S_FLIGHT,XR(D)::B(F)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(f);N_GUARD,S_FLIGHT,XR(D)::B(F)
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • B(C);
      • Threat
        • S(H)
      • Vars
        • K(f);N_GUARD,S_FLIGHT,XR(D)::B(F)
        • B(c);SBLOCK,XR(D)::QAR1(A)
      • Refutation
        • B(b);
    • Try
      • B(F);CHECK
      • Vars
        • K(f);N_GUARD,S_FLIGHT,XR(D)::S(H)
      • Refutation
        • K(f);P_SPINP(e),S_FLIGHT,XB(F)
    • Try
      • R(D);CHECK
      • Vars
        • P(e);OGATE,XR(D)::QAR1(A),XP(e)
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • R(D);CHECK,XP(e)
      • Refutation
        • B(b);CHECK,XR(D)
    • Try
      • R(E);
      • Threat
        • B(F)
      • Vars
        • K(f);S_FLIGHT,XR(D)::B(F)
        • B(c);SBLOCK,XR(D)::B(F)
      • Refutation
        • B(b);
    • Try
      • Q(A);CHECK
      • Refutation
        • K(f);P-FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(f);N_GUARD,S_FLIGHT,XR(D)::B(F)
        • B(b);::QAB1(A)
      • Refutation
        • P(g);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(f);N_GUARD,S_FLIGHT,XR(D)::QAB1(A)
        • K(f);N_GUARD,P-FLIGHT::QAR1(A)
        • B(c);SBLOCK,XR(D)::QAR2(A)
      • Refutation
        • B(c);
  • Actual
    • R(E);
    • Threat
      • B(F)
    • Vars
      • K(f);P_SPINP(e),S_FLIGHT,XR(D)::QAR1(A)
      • B(c);SBLOCK,XR(D)::B(F)
      • B(b);N_GUARD::R1(E),XP(e)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).