MESON Chess Problem Database

Problem Display
PID: 229405 (1n4B1/b2P1PP1/2pp4/2R5/1n1k1Pp1/N5p1/4Q3/4N1K1 w - - 0 1)

Klemanic, Emil

Sp. Prize, Sachova skladba, 2010

1n4B1/b2P1PP1/2pp4/2R5/1n1k1Pp1/N5p1/4Q3/4N1K1

#2

10 + 8

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Rc4#
    • 1...dxc5
      • 2.Qe5#
  • Tries
    • 1.Sg2?
      • threat
        • 2.Qc4#
        • 2.Qe3#
      • 1...Bxc5
        • 2.Qc4#
      • 1...dxc5
        • 2.Qc4#
      • 1...Sc2
        • 2.Qc4#
      • 1...Sd3
        • 2.Qe3#
      • 1...Sd5
        • 2.Rc4#
        • 2.Qc4#
      • 1...d5
        • 2.Qe3#
      • 1...Kxc5!
    • 1.Re5?
      • threat
        • 2.Qc4#
        • 2.Qb2#
        • 2.Qe3#
      • 1...dxe5
        • 2.Qxe5#
      • 1...Sd5
        • 2.Qc4#
      • 1...d5
        • 2.Qe3#
      • 1...Sa2
        • 2.Qd3#
        • 2.Qc4#
        • 2.Qd2#
        • 2.Qe3#
      • 1...Sc2
        • 2.Qd3#
        • 2.Qc4#
        • 2.Qd2#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Kc3+!
    • 1.Qf2+?
      • 1...Ke4
        • 2.Bh7#
      • 1...gxf2+!
    • 1.d8Q?
      • threat
        • 2.Qe5#
      • 1...Kxc5
        • 2.Qc4#
      • 1...Sd3
        • 2.Qxd6#
      • 1...Sd5
        • 2.Rc4#
      • 1...d5
        • 2.Rc4#
      • 1...Sd7!
    • 1.f8S?
      • threat
        • 2.Se6#
        • 2.Rc4#
      • 1...Kxc5
        • 2.Qe3#
      • 1...dxc5
        • 2.Qe5#
      • 1...d5
        • 2.Se6#
      • 1...Bxc5!
    • 1.f8B?
      • threat
        • 2.Rc4#
      • 1...Kxc5
        • 2.Qe3#
      • 1...dxc5
        • 2.Qe5#
      • 1...d5
        • 2.Qe5#
      • 1...Bxc5!
  • Keys
    • 1.f8Q!
      • threat
        • 2.Rc4#
      • 1...Kxc5
        • 2.Qe3#
      • 1...Bxc5
        • 2.Qf6#
      • 1...dxc5
        • 2.Qe5#
        • 2.Qf6#
      • 1...d5
        • 2.Qe5#

This is a version of 192603

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(b);SBLOCK::R1(F)
    • P(f);N_GUARD,XR(F)::QAB1(C)
  • Tries
    • Try
      • S(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(g);XR(F)::QAR1(C)
        • P(f);XR(F)::QAR1(C)
        • S(b);::QAR1(C)
        • S(b);::QAB1(C)
        • P(f);::QAB1(C)
      • Refutation
        • K(c);S_FLIGHT,XR(F)
    • Try
      • R(F);
      • Threat
        • DUALS(3)
      • Vars
        • P(f);OGATE,XR(F)::QAB1(C),XP(f)
        • S(b);::QAR1(C)
        • P(f);::QAB1(C)
        • S(b);N_GUARD::QAR1(C),XS(b)
      • Refutation
        • K(c);CHECK,S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT::B(J)
      • Refutation
        • P(a);CHECK,XQ(C)
    • Try
      • P(G);P_PINP(f)
      • Threat
        • QAB1(C)
      • Vars
        • K(c);N_SPINP(f),S_FLIGHT,XR(F)::QAR1(C)
        • S(b);N_GUARD::QAR2(G),XP(f)
        • S(b);N_SPINP(f),SBLOCK::R1(F)
        • P(f);::R1(F)
      • Refutation
        • S(h);N_SPINP(f)
    • Try
      • P(H);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);S_FLIGHT,XR(F)::QAB(C)
        • P(f);N_GUARD,XR(F)::QAB1(C)
        • P(f);::S(H)
      • Refutation
        • B(g);XR(F)
    • Try
      • P(H);
      • Threat
        • R1(F)
      • Vars
        • K(c);P_SPINP(f),S_FLIGHT,XR(F)::QAB(C)
        • P(f);N_GUARD,XR(F)::QAB1(C)
        • P(f);N_GUARD::QAB1(C)
      • Refutation
        • B(g);XR(F)
  • Actual
    • P(H);
    • Threat
      • R1(F)
    • Vars
      • K(c);P_SPINP(f),S_FLIGHT,XR(F)::QAB(C)
      • B(g);SBLOCK,XR(F)::QAB(H)
      • P(f);N_GUARD::QAB1(C)
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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).