MESON Chess Problem Database

Problem Display
PID: 152615 (N1Q1b3/8/2qp4/1p3P2/1Bk5/1pP1P3/1n1RRPK1/3rNBb1 w - - 0 1)

Kopyl, Valery Volodimirovich

Krivenko, Valery Aleksinovich

Prize, Batumi Quick Ty., 2013

N1Q1b3/8/2qp4/1p3P2/1Bk5/1pP1P3/1n1RRPK1/3rNBb1

#2

12 + 9

23 Die Schwalbe 2014
56 The Problemist 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3?
      • threat
        • 2.Sb6#
      • 1...Sa4
        • 2.Re1#
      • 1...Rxd2!
    • 1.f3?
      • threat
        • 2.Sb6#
      • 1...Sa4
        • 2.Rf2#
      • 1...Bxe3!
    • 1.e4?
      • threat
        • 2.Sb6#
      • 1...Sa4
        • 2.Re3#
      • 1...Bxf2!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Sb6#
      • 1...Kxd5
        • 2.Qe6#
      • 1...Sa4
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = WHITE_IN_CHECK
  • Tries
    • Try
      • S(A);P_SPINS(A)
      • Threat
        • S(K)
      • Vars
        • S(c);N_GUARD::B(B)+R(D)
      • Refutation
        • R(a);XR(C)
    • Try
      • P(E);P_SPINP(E)
      • Threat
        • S(K)
      • Vars
        • S(c);N_GUARD::B(B)+R(D)
      • Refutation
        • B(b);XP(H)
    • Try
      • P(H);P_SPINP(H)
      • Threat
        • S(K)
      • Vars
        • S(c);N_GUARD::B(B)+R(D)
      • Refutation
        • B(b);XP(E)
  • Actual
    • R(C);P_SPINR(C)
    • Threat
      • S(K)
    • Vars
      • K(e);N_SPINQ(g),OGATEB,S_FLIGHT,XR(C)::QAB1(L)
      • S(c);N_GUARD::B(B)+R(D)
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