MESON Chess Problem Database

Problem Display
PID: 251595 (3k3b/2pP1K2/2p1PPpR/1B1p2Rr/1n1N3B/8/q7/Q1n5 w - - 0 1)

Garzon Roger, Jose Antonio

Problemas, 2021

3k3b/2pP1K2/2p1PPpR/1B1p2Rr/1n1N3B/8/q7/Q1n5

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Qa8#
    • 1...Qb3
      • 2.Qa8#
    • 1...Qc4
      • 2.Qa8#
    • 1...Qb2
      • 2.Qa8#
    • 1...Qc2
      • 2.Qa8#
    • 1...Qd2
      • 2.Qa8#
    • 1...Qe2
      • 2.Qa8#
    • 1...Qf2
      • 2.Qa8#
    • 1...Qg2
      • 2.Qa8#
    • 1...Qh2
      • 2.Qa8#
    • 1...Qa8
      • 2.Qxa8#
    • 1...Rxg5
      • 2.Rxh8#
    • 1...Sc2
      • 2.Sxc6#
    • 1...Sd3
      • 2.Sxc6#
    • 1...Sa6
      • 2.Sxc6#
    • 1...c5
      • 2.e7#
  • Tries
    • 1.Bxc6?
      • threat
        • 2.e7#
      • 1...Sxc6
        • 2.Sxc6#
      • 1...Qe2
        • 2.Qa8#
      • 1...Bxf6!
    • 1.Rgxh5?
      • threat
        • 2.Rxh8#
      • 1...Bxf6
        • 2.Bxf6#
        • 2.Rh8#
      • 1...Bg7!
    • 1.Rgxg6?
      • threat
        • 2.Rg8#
      • 1...Qg2
        • 2.Qa8#
      • 1...Rg5
        • 2.Rxh8#
      • 1...Bg7!
    • 1.Qxa2?
      • threat
        • 2.Qa8#
      • 1...Sbxa2
        • 2.Sxc6#
      • 1...Sa6
        • 2.Sxc6#
      • 1...Scxa2!
  • Keys
    • 1.Rxd5!
      • threat
        • 2.e7#
      • 1...Qxd5
        • 2.Qa8#
      • 1...Rxd5
        • 2.Rxh8#
      • 1...Bxf6
        • 2.Bxf6#
      • 1...Sxd5
        • 2.Sxc6#
      • 1...Qe2
        • 2.Qa8#
      • 1...Re5
        • 2.Rxh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 15
  • Sets
    • Q(b);OGATE::QAR(A)
    • Q(b);OGATE,P_PINP(G)::QAR(A)
    • Q(b);OGATE::QAR(A),XQ(b)
    • R(e);N_GUARD,XR(E)::R(H),XB(j)
    • S(c);N_GUARD::S(B),XP(f)
    • P(f);::P(F)
  • Tries
    • Try
      • B(D);XP(f)
      • Threat
        • P(F)
      • Vars
        • S(c);XB(D)::S(B),XS(c)
        • Q(b);OGATE::QAR(A)
      • Refutation
        • B(j);XP(G)
    • Try
      • R(E);XR(e)
      • Threat
        • R(H),XB(j)
      • Refutation
        • B(j);
    • Try
      • R(E);XP(g)
      • Threat
        • R(E)
      • Vars
        • Q(b);OGATE::QAR(A)
        • R(e);N_GUARD::R(H),XB(j)
      • Refutation
        • B(j);
    • Try
      • Q(A);XQ(b)
      • Threat
        • QAR(A)
      • Vars
        • S(c);N_GUARD,XQ(A)::S(B),XP(f)
        • S(c);N_GUARD::S(B),XP(f)
      • Refutation
        • S(a);XQ(A)
  • Actual
    • R(E);XP(d)
    • Threat
      • P(F)
    • Vars
      • Q(b);OGATE,P_PINP(F),XR(E)::QAR(A)
      • R(e);N_GUARD,XR(E)::R(H),XB(j)
      • B(j);OGATE,P_SPINB(j),XP(G)::B(C),XB(j)
      • S(c);N_GUARD,XR(E)::S(B),XP(f)
      • Q(b);OGATE::QAR(A)
      • R(e);N_GUARD::R(H),XB(j)
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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).