MESON Chess Problem Database

Problem Display
PID: 267588 (Q7/4K3/4P1pB/1Pppp1Rr/1p1kp2N/1n1B4/2Rn1P2/2N2b2 w - - 0 1)

Pavlov, Mikhail Aleksandrovich

Shakhmatnaya kompozitsiya, 1993

Q7/4K3/4P1pB/1Pppp1Rr/1p1kp2N/1n1B4/2Rn1P2/2N2b2

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Qxa1#
  • Tries
    • 1.Bxe4?
      • threat
        • 2.Qxd5#
      • 1...Kxe4
        • 2.Rg4#
      • 1...Sxe4
        • 2.Sf3#
      • 1...dxe4
        • 2.Qd8#
      • 1...Bc4!
    • 1.Rxc5?
      • threat
        • 2.Qxd5#
      • 1...Kxc5
        • 2.Qa7#
      • 1...Sxc5
        • 2.Qa1#
      • 1...Sc4!
  • Keys
    • 1.Rxe5!
      • threat
        • 2.Qxd5#
      • 1...Kxe5
        • 2.Qh8#
      • 1...Rxe5
        • 2.Be3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(c);N_GUARD::QAB(K),XS(c)
  • Tries
    • Try
      • B(D);XP(f)
      • Threat
        • QAR1(K),XP(h)
      • Vars
        • K(e);OGATEB,P-FLIGHT,P_SPINP(h),XB(D)::R(G)
        • S(b);N_GUARD,SBLOCK,XB(D)::S(E)
        • P(h);OGATEB,SBLOCK,XB(D)::QAR(K)
      • Refutation
        • B(a);
    • Try
      • R(B);XP(g)
      • Threat
        • QAR1(K),XP(h)
      • Vars
        • K(e);OGATEB,S_FLIGHT,XR(B)::QAB(K)
        • S(c);N_GUARD,SBLOCK,XR(B)::QAB(K)
      • Refutation
        • S(b);
  • Actual
    • R(G);XP(i)
    • Threat
      • QAR1(K),XP(h)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(G)::QAB(K)
      • R(j);P_PINP(H),SBLOCK,XR(G)::B(I)
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).