MESON Chess Problem Database

Problem Display
PID: 157002 (5N1n/4p2R/Q1b1rk2/8/2NPp1K1/4P3/8/8 w - - 0 1)

Alekseev, Yuri Mikhailovich

Moscow Ty., 2012

5N1n/4p2R/Q1b1rk2/8/2NPp1K1/4P3/8/8

#2

7 + 6

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.dxe5#
    • 1...Ba4
      • 2.Qxe6#
    • 1...Bb5
      • 2.Qxe6#
    • 1...Bb7
      • 2.Qxe6#
    • 1...Ba8
      • 2.Qxe6#
    • 1...Be8
      • 2.Qxe6#
  • Tries
    • 1.Se5?
      • threat
        • 2.Qf1#
      • 1...Bb5
        • 2.Qxe6#
      • 1...Sg6
        • 2.Rf7#
      • 1...Rxe5!
    • 1.Sb6?
      • threat
        • 2.Qf1#
      • 1...Re5
        • 2.Sbd7#
      • 1...Bb5
        • 2.Sd5#
      • 1...Sg6!
    • 1.Qa1?
      • threat
        • 2.Qf1#
      • 1...Re5
        • 2.dxe5#
      • 1...Sg6!
    • 1.Qa2?
      • threat
        • 2.Qf2#
      • 1...Re5
        • 2.dxe5#
      • 1...Sg6!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qf1#
      • 1...Sg6
        • 2.Rf7#
      • 1...Re5
        • 2.Se8#
      • 1...Bb5
        • 2.Sxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(c);OGATE,P_SPINB(b)::P(C),XR(c)
    • B(b);OGATE,P_SPINR(c)::QAR1(E),XR(c)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR(E)
      • Vars
        • B(b);OGATE,P_SPINR(c)::QAR1(E),XR(c)
        • S(f);N_GUARD::R1(F)
      • Refutation
        • R(c);P_SPINB(b),XS(B)
    • Try
      • S(B);
      • Threat
        • QAR(E)
      • Vars
        • R(c);S_CUTB(b)::S(B)
        • B(b);N_GUARD::S(B)
      • Refutation
        • S(f);
    • Try
      • Q(E);
      • Threat
        • QAR(E)
      • Vars
        • R(c);OGATE::P(C),XR(c)
      • Refutation
        • S(f);
    • Try
      • Q(E);
      • Threat
        • QAR(E)
      • Vars
        • R(c);OGATE::P(C),XR(c)
      • Refutation
        • S(f);
  • Actual
    • S(B);
    • Threat
      • QAR(E)
    • Vars
      • S(f);N_GUARD::R1(F)
      • R(c);S_CUTB(b)::S(B)
      • B(b);N_GUARD,S_CUTR(c)::S(B),XP(a)
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