MESON Chess Problem Database

Problem Display
PID: 240081 (4n3/3NK3/1p3Q2/1rP1p3/Rn1k2N1/2Rp1B2/1P2rp2/2b5 w - - 0 1)

Mosiashvili, Givi

Kudesnik, 2015

4n3/3NK3/1p3Q2/1rP1p3/Rn1k2N1/2Rp1B2/1P2rp2/2b5

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb2
      • 2.Qxe5#
    • 1...Rc2
      • 2.Qxe5#
    • 1...Rd2
      • 2.Qxe5#
    • 1...Ra5
      • 2.Rxb4#
    • 1...Be3
      • 2.Qxe5#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sg7
      • 2.Qd6#
  • Tries
    • 1.Sdxe5?
      • threat
        • 2.Rc4#
      • 1...Rxe5+
        • 2.Qxe5#
      • 1...Rxc5
        • 2.Rxd3#
      • 1...Rc2
        • 2.Sc6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Re4!
  • Keys
    • 1.Sgxe5!
      • threat
        • 2.Rxd3#
      • 1...Rxe5+
        • 2.Qxe5#
      • 1...Ke3
        • 2.Sc4#
      • 1...Rd2
        • 2.Qf4#
      • 1...Re3
        • 2.Rc4#
      • 1...d2
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(b);N_GUARD,XP(A)::QAB1(G),XP(h)
    • R(b);N_GUARD::QAB1(G),XP(h)
    • R(g);N_GUARD::R(D),XS(e)
    • B(a);S_CUTR(b)::QAB1(G),XP(h)
    • S(j);N_GUARD::QAR2(G),XS(j)
    • S(j);N_GUARD::QAR2(G)
  • Tries
    • Try
      • S(H);P_SPINS(H),XP(h)
      • Threat
        • R1(B)
      • Vars
        • R(b);CHECK,OGATE,P_SPINR(b),XS(H)::QAB1(G),XR(b)
        • R(g);SBLOCK,XP(F)::R1(B),XP(d)
        • R(b);N_PINS(H)::QAB(G)+S(H),DCHECK
        • S(j);N_GUARD::QAR2(G),XS(j)
      • Refutation
        • R(b);
  • Actual
    • S(E);P_SPINS(E),XP(h)
    • Threat
      • R1(B),XP(d)
    • Vars
      • R(b);CHECK,OGATE,P_SPINR(b),XS(E)::QAB1(G),XR(b)
      • K(f);N_PINS(E),N_SPINS(e),P_SPINP(d),S_FLIGHT::S(E)
      • R(b);N_GUARD,N_PINS(E),S_CUTB(a)::QAR2(G)
      • R(b);SBLOCK::R1(B)
      • P(d);::R1(B)
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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).