MESON Chess Problem Database

Problem Display
PID: 269346 (K6B/1R6/1pQ1p3/1p1Pn1N1/1P1k2p1/1Pp2b2/2p1P3/1n1r1NbB w - - 0 1)

Slesarenko, Anatoly Vasilevich

Mosiashvili-75 JT (Kudesnik), 2023

K6B/1R6/1pQ1p3/1p1Pn1N1/1P1k2p1/1Pp2b2/2p1P3/1n1r1NbB

#2

11 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sxe6#
    • 1...Bxd5
      • 2.Qxb6#
    • 1...exd5
      • 2.Qxb6#
  • Tries
    • 1.Bxf3?
      • threat
        • 2.Sxe6#
        • 2.Qxb6#
      • 1...Rxf1
        • 2.Qxb6#
      • 1...exd5
        • 2.Se6#
        • 2.Qxd5#
        • 2.Qxb6#
      • 1...gxf3!
    • 1.Qxb5?
      • threat
        • 2.Qc4#
      • 1...Rxf1
        • 2.Qd3#
      • 1...Bxe2
        • 2.Sxe6#
      • 1...Bxd5
        • 2.Qxb6#
      • 1...exd5
        • 2.Qxb6#
      • 1...Sd2
        • 2.Qd3#
      • 1...Sa3!
    • 1.Qd6?
      • threat
        • 2.Bxe5#
        • 2.Qxe5#
      • 1...Rxf1
        • 2.Qxe5#
      • 1...Bxe2
        • 2.dxe6#
      • 1...Bh2!
    • 1.d6?
      • threat
        • 2.Sxe6#
      • 1...Bxe2
        • 2.Qe4#
      • 1...Bd5
        • 2.Qxb6#
      • 1...Rxf1!
  • Keys
    • 1.Rd7!
      • threat
        • 2.Qxb6#
      • 1...Bxe2
        • 2.dxe6#
      • 1...Bxd5
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(f);::S(G),XP(l)
    • B(f);XP(F)::QAB(H),XP(k)
    • P(l);SBLOCK,XP(F)::QAB(H),XP(k)
  • Tries
    • Try
      • B(B);XB(f)
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XS(A)::QAB(H),XP(k)
      • Refutation
        • P(h);XB(B)
    • Try
      • Q(H);XP(i)
      • Threat
        • QAR1(H)
      • Vars
        • R(b);N_GUARD,XS(A)::QAR1(H)
        • B(f);XP(C)::S(G),XP(l)
        • B(f);P_PINR(I),XP(F)::QAB(H),XP(k)
        • P(l);SBLOCK,XP(F)::QAB(H),XP(k)
        • S(a);S_CUTR(b)::QAR1(H)
      • Refutation
        • S(a);
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XS(A)::QAB1(H),XS(j)
        • B(f);N_GUARD,XP(C)::QAR(H)+P(F),XP(l)
      • Refutation
        • B(c);
    • Try
      • P(F);
      • Threat
        • S(G),XP(l)
      • Vars
        • B(f);N_GUARD,XP(C)::QAR1(H)
        • B(f);::QAB(H),XP(k)
      • Refutation
        • R(b);XS(A)
  • Actual
    • R(I);
    • Threat
      • QAB(H),XP(k)
    • Vars
      • B(f);N_GUARD,XP(C)::R(I)+P(F),XP(l)
      • B(f);P_PINQ(H),P_SPINB(f),XP(F)::S(G),XP(l)
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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).