MESON Chess Problem Database

Problem Display
PID: 136728 (8/2pP2B1/2PP1N2/R1p5/K1k2n1R/p1N2r1n/3Q4/8 w - - 0 1)

Janevski, Zivko

Probleemblad, 2010

8/2pP2B1/2PP1N2/R1p5/K1k2n1R/p1N2r1n/3Q4/8

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc3
      • 2.Qd5#
  • Tries
    • 1.Sce4?
      • threat
        • 2.Rxc5#
      • 1...cxd6
        • 2.Sxd6#
      • 1...Sd3
        • 2.Qc3#
      • 1...Se6
        • 2.Qd5#
      • 1...Rd3!
    • 1.Sg4?
      • threat
        • 2.Se5#
      • 1...Rd3
        • 2.Qa2#
      • 1...Re3
        • 2.Sxe3#
      • 1...cxd6!
    • 1.Sh5?
      • threat
        • 2.Qd5#
      • 1...Rd3
        • 2.Qa2#
      • 1...Rxc3!
    • 1.Sh7?
      • threat
        • 2.Qd5#
      • 1...Rd3
        • 2.Qa2#
      • 1...Rxc3!
    • 1.Se8?
      • threat
        • 2.Qd5#
      • 1...Rd3
        • 2.Qa2#
      • 1...Rxc3!
    • 1.Sg8?
      • threat
        • 2.Qd5#
      • 1...Rd3
        • 2.Qa2#
      • 1...Rxc3!
    • 1.Qe2+?
      • 1...Kxc3
        • 2.Se4#
        • 2.Sg4#
        • 2.Sd5#
        • 2.Sh5#
        • 2.Sh7#
        • 2.Se8#
        • 2.Sg8#
      • 1...Kd4
        • 2.Sb5#
        • 2.Sfe4#
        • 2.Sg4#
        • 2.Sfd5#
        • 2.Sh5#
        • 2.Sh7#
        • 2.Se8#
        • 2.Sg8#
      • 1...Rd3!
  • Keys
    • 1.Sfe4!
      • threat
        • 2.Rxc5#
      • 1...cxd6
        • 2.Sxd6#
      • 1...Sd3
        • 2.Qa2#
      • 1...Se6
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(b);SBLOCK,XS(B)::QAB1(A)
  • Tries
    • Try
      • S(B);N_PINS(e)
      • Threat
        • R1(E),XP(f)
      • Vars
        • P(g);XP(G)::S(B),XP(g)
        • S(e);S_CUTR(b)::QAR1(A)
        • S(e);N_GUARD::QAB1(A)
      • Refutation
        • R(b);
    • Try
      • S(H);N_PINS(e)
      • Threat
        • S(H)
      • Vars
        • R(b);SBLOCK::QAB(A)
        • R(b);N_GUARD::S(H),XR(b)
      • Refutation
        • P(g);XP(G)
    • Try
      • S(H);
      • Threat
        • QAB1(A)
      • Vars
        • R(b);SBLOCK::QAB(A)
      • Refutation
        • R(b);XS(B)
    • Try
      • S(H);
      • Threat
        • QAB1(A)
      • Vars
        • R(b);SBLOCK::QAB(A)
      • Refutation
        • R(b);XS(B)
    • Try
      • S(H);
      • Threat
        • QAB1(A)
      • Vars
        • R(b);SBLOCK::QAB(A)
      • Refutation
        • R(b);XS(B)
    • Try
      • S(H);
      • Threat
        • QAB1(A)
      • Vars
        • R(b);SBLOCK::QAB(A)
      • Refutation
        • R(b);XS(B)
    • Try
      • Q(A);CHECK
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • S(H);N_PINS(e)
    • Threat
      • R1(E),XP(f)
    • Vars
      • P(g);XP(G)::S(H),XP(g)
      • S(e);SBLOCK::QAB(A)
      • S(e);N_GUARD::QAB1(A)
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