MESON Chess Problem Database

Problem Display
PID: 265800 (2n5/1K1P3r/3k1N2/Bnp1p3/3p2Q1/5N2/8/8 w - - 0 1)

Gajevskis, A

Sachmatija, 2022

2n5/1K1P3r/3k1N2/Bnp1p3/3p2Q1/5N2/8/8

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.dxc8S#
      • 2.d8Q#
    • 1...Rh2
      • 2.dxc8S#
      • 2.d8Q#
    • 1...Rh3
      • 2.dxc8S#
      • 2.d8Q#
    • 1...Rh4
      • 2.dxc8S#
      • 2.d8Q#
    • 1...Rh5
      • 2.dxc8S#
      • 2.d8Q#
    • 1...Rh6
      • 2.dxc8S#
      • 2.d8Q#
    • 1...Rxd7+
      • 2.Qxd7#
    • 1...Sc7
      • 2.dxc8S#
    • 1...Se7
      • 2.d8Q#
      • 2.d8R#
    • 1...c4
      • 2.Bb4#
  • Tries
    • 1.Bc7+?
      • 1...Sxc7
        • 2.dxc8S#
      • 1...Ke7!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qe6#
      • 1...Rxd7+
        • 2.Qxd7#
      • 1...Ke7
        • 2.d8Q#
      • 1...c4
        • 2.Bb4#
      • 1...Re7
        • 2.Sge4#
      • 1...Sc7
        • 2.dxc8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(f);CHECK,OGATE,XP(F)::QAR1(B),XR(f)
    • S(b);N_PINP(F)::PXS(g)=S
    • S(g);N_PINP(F)::P=Q
    • P(c);OGATEB::B(C)
  • Tries
    • Try
      • B(C);CHECK,N_SPINP(F)
      • Vars
        • S(b);N_GUARD,S_CUTR(f),XB(C)::PXS(g)=S
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • S(A);
    • Threat
      • QAR1(B)
    • Vars
      • R(f);CHECK,OGATE,XP(F)::QAR1(B),XR(f)
      • K(e);N_PINP(F),S_FLIGHT::P=Q
      • P(c);OGATEB::B(C)
      • R(f);SBLOCK::S(A)
      • S(b);N_PINP(F)::PXS(g)=S
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