MESON Chess Problem Database

Problem Display
PID: 238578 (2N1nR2/1b1R4/1pppppp1/4P3/3pkpP1/1Q1N4/2K3P1/6B1 w - - 0 1)

Labai, Zoltan

Problemist Ukraini, 2019

2N1nR2/1b1R4/1pppppp1/4P3/3pkpP1/1Q1N4/2K3P1/6B1

#2

10 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc7
      • 2.Sxd6#
    • 1...Sg7
      • 2.Sxd6#
    • 1...dxe5
      • 2.Sf2#
    • 1...fxe5
      • 2.Sf2#
  • Tries
    • 1.Rxd6?
      • threat
        • 2.Rxd4#
      • 1...Sxd6
        • 2.Sxd6#
      • 1...fxe5
        • 2.Sf2#
      • 1...c5!
    • 1.Rxf6?
      • threat
        • 2.Rxf4#
      • 1...Sxf6
        • 2.Sxd6#
      • 1...dxe5
        • 2.Sf2#
      • 1...f3
        • 2.Rf4#
        • 2.gxf3#
      • 1...g5!
    • 1.Rxe8?
      • threat
        • 2.Sxd6#
      • 1...dxe5
        • 2.Sf2#
        • 2.Sd6#
      • 1...d5
        • 2.Sd6#
      • 1...Bxc8!
    • 1.exf6?
      • threat
        • 2.Qxe6#
      • 1...Sc7
        • 2.Sxd6#
      • 1...Sg7
        • 2.Sxd6#
      • 1...e5
        • 2.Sf2#
      • 1...d5!
  • Keys
    • 1.Qxe6!
      • threat
        • 2.exd6#
        • 2.exf6#
      • 1...dxe5
        • 2.Rxd4#
      • 1...fxe5
        • 2.Rxf4#
      • 1...Sc7
        • 2.Sxd6#
      • 1...Sg7
        • 2.Sxd6#
      • 1...d5
        • 2.exf6#
      • 1...f5
        • 2.exd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(k);N_GUARD::S(I),XP(f)
    • P(f);SBLOCK,XP(G)::S(E)
    • P(h);SBLOCK,XP(G)::S(E)
  • Tries
    • Try
      • R(H);XP(f)
      • Threat
        • R1(H),XP(a)
      • Vars
        • S(k);XR(H)::S(I),XS(k)
        • P(h);SBLOCK,XP(G)::S(E)
      • Refutation
        • P(e);
    • Try
      • R(J);XP(h)
      • Threat
        • R1(J),XP(c)
      • Vars
        • S(k);N_GUARD,XR(J)::S(I),XP(f)
        • P(f);SBLOCK,XP(G)::S(E)
      • Refutation
        • P(i);
    • Try
      • R(J);XS(k)
      • Threat
        • S(I),XP(f)
      • Vars
        • P(f);::S(I)
      • Refutation
        • B(j);XS(I)
    • Try
      • P(G);XP(h)
      • Threat
        • QAR2(D),XP(g)
      • Vars
        • S(k);N_GUARD::S(I),XP(f)
        • P(g);SBLOCK::S(E)
      • Refutation
        • P(f);
  • Actual
    • Q(D);XP(g)
    • Threat
      • DUALS(2)
    • Vars
      • P(f);OGATE,P_SPINP(f),XP(G)::R1(H),XP(a)
      • P(h);OGATE,P_SPINP(h),XP(G)::R1(J),XP(c)
      • S(k);N_GUARD::S(I),XP(f)
      • P(f);::QAR(D)+P(G),XP(h)
      • P(h);::QAR(D)+P(G),XP(f)
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