MESON Chess Problem Database

Problem Display
PID: 173945 (3r4/1P2BP2/4QK2/1pPpP1P1/3kN2R/1R3pP1/3N1P2/7q w - - 0 1)

Janevski, Zivko

Sachmatija, 2013

3r4/1P2BP2/4QK2/1pPpP1P1/3kN2R/1R3pP1/3N1P2/7q

#2

14 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...dxe4
      • 2.Rxe4#
  • Tries
    • 1.Sxf3+?
      • 1...Kc4
        • 2.Sed2#
      • 1...Qxf3+!
    • 1.Sc3+?
      • 1...Qxh4
        • 2.Sxb5#
      • 1...Kd3!
    • 1.Sd6+?
      • 1...Qxh4
        • 2.Sxb5#
        • 2.Sf5#
      • 1...Kxc5!
    • 1.c6?
      • threat
        • 2.Bc5#
      • 1...dxe4
        • 2.Rxe4#
      • 1...Qc1
        • 2.Sc5#
      • 1...Rd6!
  • Keys
    • 1.Qb6!
      • threat
        • 2.c6#
      • 1...Rd6+
        • 2.cxd6#
      • 1...dxe4
        • 2.Qxd8#
      • 1...Qc1
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(e);OGATE,P_SPINP(e),XS(E)::R1(F),XP(e)
  • Tries
    • Try
      • S(A);CHECK,XP(b)
      • Vars
        • K(c);P-FLIGHT,P_SPINP(e)::R(F)+S(E),DCHECK
      • Refutation
        • Q(a);CHECK,XS(A)
    • Try
      • S(E);CHECK
      • Vars
        • Q(a);P_PINP(I),XR(F)::S(E),XP(d)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(E);CHECK
      • Refutation
        • K(c);S_FLIGHT,XP(G)
    • Try
      • P(G);
      • Threat
        • B(M)
      • Vars
        • P(e);OGATE,P_SPINP(e),XS(E)::R1(F),XP(e)
        • Q(a);N_GUARD::R(F)+S(E)
      • Refutation
        • R(f);P_PINQ(J)
  • Actual
    • Q(J);
    • Threat
      • QAB(J)+P(G)
    • Vars
      • R(f);CHECK,OGATE::QAB(J)+P(G),XR(f)
      • P(e);OGATEB,P_SPINP(e),XS(E)::QAR(J),XR(f)
      • Q(a);N_GUARD::R(F)+S(E)
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