MESON Chess Problem Database

Problem Display
PID: 245595 (8/1P1bP3/7p/1NR1R2p/4Pk1r/K3Nn1r/3P1B2/3Bb1Q1 w - - 0 1)

Slesarenko, Anatoly Vasilevich

Pat a Mat, 2019

8/1P1bP3/7p/1NR1R2p/4Pk1r/K3Nn1r/3P1B2/3Bb1Q1

#2

12 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Qg3#
    • 1...Rh2
      • 2.Qg3#
    • 1...Rg3
      • 2.Qxg3#
    • 1...Bg4
      • 2.Sg2#
  • Tries
    • 1.Rf5+?
      • 1...Kxe4
        • 2.Bc2#
      • 1...Bxf5!
    • 1.Qg4+?
      • 1...Bxg4
        • 2.Sg2#
      • 1...hxg4
        • 2.Sg2#
      • 1...Rxg4!
    • 1.Qg7?
      • threat
        • 2.Sg2#
        • 2.Sd5#
      • 1...Sxd2
        • 2.Qxh6#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Rh2
        • 2.Sd5#
        • 2.Qg3#
      • 1...Rg3
        • 2.Sd5#
        • 2.Qxg3#
      • 1...Rg4
        • 2.Sd5#
      • 1...Bc6
        • 2.Sg2#
        • 2.Qf6#
        • 2.Qf8#
        • 2.Qf7#
      • 1...Be6
        • 2.Sg2#
      • 1...Sg1
        • 2.Qxh6#
      • 1...Sh2
        • 2.Qxh6#
      • 1...Sd4
        • 2.Qxh6#
      • 1...Sg5!
    • 1.b8Q?
      • threat
        • 2.Sd5#
      • 1...Sxg1
        • 2.Re6#
      • 1...Sxd2
        • 2.Re6#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Rg3
        • 2.Qxg3#
      • 1...Bc6
        • 2.Qf8#
      • 1...Sh2
        • 2.Re6#
      • 1...Sd4
        • 2.Re6#
      • 1...Sg5
        • 2.Re6#
      • 1...Be6!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Se2#
      • 1...Sxg1
        • 2.Sg2#
      • 1...Sxd2
        • 2.Sg2#
      • 1...Sxe5
        • 2.Sed5#
      • 1...Bb5
        • 2.Rf5#
      • 1...Sh2
        • 2.Sg2#
      • 1...Sd4
        • 2.Sg2#
      • 1...Sg5
        • 2.Sg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 4
  • Sets
    • R(c);N_GUARD::QAB1(B)
    • R(c);N_GUARD::QAB1(B),XR(c)
    • B(h);SBLOCK::S(F)
  • Tries
    • Try
      • R(J);CHECK
      • Vars
        • K(d);P-FLIGHT,XP(G)::B(A)
      • Refutation
        • B(h);XR(J)
    • Try
      • Q(B);CHECK
      • Vars
        • B(h);SBLOCK,XQ(B)::S(F)
        • P(f);SBLOCK,XQ(B)::S(F)
      • Refutation
        • R(e);XQ(B)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);N_GUARD,P_PINS(F),XP(C)::QAB(B),XP(g)
        • S(b);OGATE,P_PINS(F),XR(J)::QAB1(B),XS(b)
        • R(e);::S(F)
        • B(h);::S(F)
        • S(b);N_GUARD,P_PINS(F)::QAB(B),XP(g)
      • Refutation
        • S(b);P_PINS(F)
    • Try
      • P(K);
      • Threat
        • S(F)
      • Vars
        • S(b);N_GUARD,P_PINS(F),XQ(B)::QAB(K)+R(J)
        • S(b);N_GUARD,P_PINS(F),XP(C)::QAB(K)+R(J)
        • S(b);OGATE,P_PINS(F),P_SPINS(b),XR(J)::QAB1(K),XS(b)
        • R(c);N_GUARD::QAB1(B),XR(c)
        • B(h);N_GUARD::QAR(K)
        • S(b);N_GUARD,P_PINS(F)::QAB(K)+R(J)
      • Refutation
        • B(h);
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • S(b);XQ(B)::S(F)
      • S(b);XP(C)::S(F)
      • S(b);SBLOCK,XR(J)::S(F)
      • B(h);N_GUARD::R1(J)
      • S(b);::S(F)
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).