MESON Chess Problem Database

Problem Display
PID: 245914 (2b5/3rPQ2/2N5/1PpPPp2/2p1kN2/1p6/3B1RKn/2n5 w - - 0 1)

Janevski, Zivko

Europa-Rochade, 2010

2b5/3rPQ2/2N5/1PpPPp2/2p1kN2/1p6/3B1RKn/2n5

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd5
      • 2.Qxd5#
    • 1...Sa2
      • 2.Re2#
    • 1...Se2
      • 2.Rxe2#
    • 1...Sd3
      • 2.Re2#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sxc5#
      • 1...Kxd3
        • 2.Qxf5#
      • 1...Sxd3
        • 2.Re2#
      • 1...cxd3
        • 2.Rf4#
      • 1...Rxd5!
    • 1.d6?
      • threat
        • 2.Qxc4#
        • 2.Qd5#
      • 1...Se2
        • 2.Rxe2#
        • 2.Qd5#
      • 1...Sf3
        • 2.Qd5#
      • 1...c3
        • 2.Qc4#
        • 2.Qd5#
      • 1...Rxd6!
    • 1.e8S?
      • threat
        • 2.Sf6#
      • 1...Rxf7
        • 2.Sd6#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Sg4!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sxc5#
      • 1...Kd3
        • 2.Qxf5#
      • 1...Kxd5
        • 2.Sg5#
      • 1...Rxd5
        • 2.Qxf5#
      • 1...Sd3
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(h);OGATE,XP(F)::QAB1(J),XR(h)
    • S(a);N_GUARD::R(B)
    • S(a);N_GUARD::R(B),XS(a)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D),XP(f)
      • Vars
        • K(e);S_FLIGHT,XS(D)::QAB(J),XP(g)
        • S(a);N_GUARD,SBLOCK,XS(D)::R(B)
        • P(d);SBLOCK,XS(D)::R1(B)
      • Refutation
        • R(h);XP(F)
    • Try
      • P(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::QAB1(J)
      • Refutation
        • R(h);XP(F)
    • Try
      • P(I);
      • Threat
        • S(I)
      • Vars
        • R(h);N_GUARD,XQ(J)::S(I)
        • R(h);N_GUARD::S(I),XR(h)
      • Refutation
        • S(b);
  • Actual
    • S(D);
    • Threat
      • S(D),XP(f)
    • Vars
      • K(e);S_FLIGHT::QAB(J),XP(g)
      • K(e);S_FLIGHT,XP(F)::QAB(J)+S(D)
      • R(h);SBLOCK,XP(F)::QAB1(J),XP(g)
      • S(a);SBLOCK::S(D)
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