MESON Chess Problem Database

Problem Display
PID: 195816 (2K1k3/3R3N/8/8/2p5/6N1/4p1rb/7Q w - - 0 1)

Chernyavsky, Mykola Vasilovich

Kapustin, Fedor Mikhailovich

StrateGems, 2018

2K1k3/3R3N/8/8/2p5/6N1/4p1rb/7Q

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Qe4#
    • 1...Rf2
      • 2.Qe4#
    • 1...Rxg3
      • 2.Qe4#
    • 1...Bg1
      • 2.Qh5#
    • 1...Bxg3
      • 2.Qh5#
  • Tries
    • 1.Qa1?
      • threat
        • 2.Qe5#
        • 2.Qh8#
      • 1...Rxg3
        • 2.Qe5#
      • 1...Bxg3
        • 2.Qh8#
      • 1...e1Q
        • 2.Qh8#
      • 1...e1R
        • 2.Qh8#
      • 1...Rf2
        • 2.Qe5#
      • 1...c3!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qe4#
        • 2.Qg6#
      • 1...Rxg3
        • 2.Qe4#
      • 1...Bxg3
        • 2.Qg6#
      • 1...e1Q
        • 2.Qg6#
      • 1...e1R
        • 2.Qg6#
      • 1...Rf2
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(b);OGATE::QAR(A)
    • R(b);OGATE,XS(B)::QAR(A)
    • B(c);OGATE::QAB(A)
    • B(c);OGATE,XS(B)::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XS(B)::QAR(A)
        • B(c);XS(B)::QAR(A)
        • P(a);::QAR(A)
        • R(b);::QAR(A)
      • Refutation
        • P(d);
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • R(b);XS(B)::QAR(A)
      • B(c);XS(B)::QAB(A)
      • P(a);::QAB(A)
      • R(b);::QAR(A)
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