MESON Chess Problem Database

Problem Display
PID: 262745 (6N1/1R3Q2/6p1/p1b1k1p1/B1Pn2P1/qpB3K1/3PP3/7b w - - 0 1)

Trommler, Sven

2nd Prize, SuperProblem, 2013

6N1/1R3Q2/6p1/p1b1k1p1/B1Pn2P1/qpB3K1/3PP3/7b

#2

10 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qd5#
    • 1...Kd6
      • 2.Qe7#
    • 1...Be4
      • 2.Qf6#
    • 1...Bd5
      • 2.Qxd5#
  • Tries
    • 1.Rb5?
      • threat
        • 2.Qe7#
      • 1...Ke4
        • 2.Qd5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Kd6!
    • 1.Qe8+?
      • 1...Kd6
        • 2.Rd7#
        • 2.Qe7#
      • 1...Be7!
    • 1.Qf4+?
      • 1...Ke6
        • 2.Bd7#
        • 2.Qf6#
      • 1...gxf4+!
    • 1.Qf5+?
      • 1...Kd6
        • 2.Rd7#
      • 1...gxf5!
    • 1.Qg7+?
      • 1...Kd6
        • 2.Qe7#
      • 1...Ke6
        • 2.Qf6#
      • 1...Ke4!
    • 1.d3?
      • threat
        • 2.Qf6#
      • 1...Kd6
        • 2.Qe7#
      • 1...Be7!
    • 1.e4?
      • threat
        • 2.Qd5#
      • 1...Kd6
        • 2.Qd5#
        • 2.Qe7#
      • 1...Bxe4
        • 2.Qf6#
      • 1...Kxe4!
  • Keys
    • 1.Bd7!
      • threat
        • 2.Qe6#
      • 1...Ke4
        • 2.Qd5#
      • 1...Kd6
        • 2.Qe7#
      • 1...Bd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(g);N_SPINS(d),P-FLIGHT,S_CUTB(a)::QAB1(I)
    • K(g);N_SPINS(d),S_CUTB(f),S_FLIGHT::QAB1(I)
    • B(a);SBLOCK::QAB1(I)
    • B(a);N_GUARD::QAR1(I),XB(a)
  • Tries
    • Try
      • R(H);P_PINB(f)
      • Threat
        • QAR2(I)
      • Vars
        • K(g);N_SPINB(f),N_SPINS(d),P-FLIGHT,S_CUTB(a)::QAB1(I)
        • B(a);N_GUARD,N_SPINB(f)::QAR1(I),XB(a)
      • Refutation
        • K(g);N_SPINB(f),N_SPINS(d),S_FLIGHT
    • Try
      • Q(I);CHECK
      • Refutation
        • B(f);P_SPINB(f)
    • Try
      • Q(I);CHECK
      • Refutation
        • P(h);CHECK,XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • K(g);N_SPINS(d),S_CUTP(i),S_FLIGHT::R1(H)
      • Refutation
        • P(i);XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • K(g);N_SPINS(d),S_CUTB(f),S_FLIGHT::QAB1(I)
        • K(g);N_GUARD,N_SPINS(d),P-FLIGHT::QAR1(I)
      • Refutation
        • K(g);N_SPINS(d),P-FLIGHT
    • Try
      • P(A);
      • Threat
        • QAB1(I)
      • Vars
        • K(g);N_SPINS(d),S_CUTB(f),S_FLIGHT::QAB1(I)
      • Refutation
        • B(f);
    • Try
      • P(B);
      • Threat
        • QAR1(I)
      • Vars
        • B(a);SBLOCK,XP(B)::QAB1(I)
      • Refutation
        • K(g);N_SPINS(d),P-FLIGHT,XP(B)
  • Actual
    • B(E);
    • Threat
      • QAR1(I)
    • Vars
      • K(g);N_SPINS(d),P-FLIGHT,S_CUTB(a)::QAB1(I)
      • K(g);N_SPINS(d),S_CUTB(f),S_FLIGHT::QAB1(I)
      • B(a);N_GUARD::QAR1(I),XB(a)
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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).