MESON Chess Problem Database

Problem Display
PID: 169026 (r1n2B2/p3PP2/R3p1q1/1P1k4/5P2/1P1NP3/KP1N4/n1r5 w - - 0 1)

Labai, Zoltan

Zamanov, Vidadi

1st HM., SuperProblem, 2017

r1n2B2/p3PP2/R3p1q1/1P1k4/5P2/1P1NP3/KP1N4/n1r5

#2

12 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.bxc4#
    • 1...Rc5
      • 2.Sb4#
  • Tries
    • 1.e8Q?
      • threat
        • 2.Sb4#
      • 1...Qxd3
        • 2.Qxe6#
      • 1...Rc4
        • 2.bxc4#
      • 1...Sc2
        • 2.Qc6#
      • 1...Sd6
        • 2.Rxd6#
      • 1...Se7
        • 2.Qd7#
      • 1...Qe4!
  • Keys
    • 1.e8S!
      • threat
        • 2.Sb4#
      • 1...Qxd3
        • 2.Sf6#
      • 1...Qe4
        • 2.Sf6#
      • 1...Rc4
        • 2.bxc4#
      • 1...Sc2
        • 2.Sc7#
      • 1...Sd6
        • 2.Rxd6#
      • 1...Se7
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(b);OGATE::P(D),XR(b)
    • R(b);SBLOCK::S(E)
  • Tries
    • Try
      • P(J);
      • Threat
        • S(E)
      • Vars
        • Q(e);N_GUARD,XS(E)::QAB1(J),XP(d)
        • R(b);OGATE::P(D),XR(b)
        • S(a);S_CUTR(b)::QAB1(J)
        • S(h);N_GUARD::R1(I),XS(h)
        • S(h);N_GUARD::QAR2(J)
      • Refutation
        • Q(e);
  • Actual
    • P(J);
    • Threat
      • S(E)
    • Vars
      • Q(e);N_GUARD,XS(E)::S(J)
      • Q(e);N_GUARD::S(J)
      • R(b);OGATE::P(D),XR(b)
      • S(a);S_CUTR(b)::S(J)
      • S(h);N_GUARD::R1(I),XS(h)
      • S(h);N_GUARD::R1(I)
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