MESON Chess Problem Database

Problem Display
PID: 145713 (8/2K3N1/1p1B4/1p1kp3/pQ6/7N/5R2/1n1br3 w - - 0 1)

Kovacevic, Marjan

3rd Prize, Nagler MT, 2007

8/2K3N1/1p1B4/1p1kp3/pQ6/7N/5R2/1n1br3

#2

6 + 8

23 Die Schwalbe 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Rxd2#
    • 1...Sa3
      • 2.Rd2#
    • 1...Sc3
      • 2.Rd2#
    • 1...e4
      • 2.Sf4#
      • 2.Rf5#
  • Tries
    • 1.Rf4?
      • threat
        • 2.Qxb5#
      • 1...exf4
        • 2.Sxf4#
      • 1...Re4
        • 2.Qxe4#
      • 1...Be2
        • 2.Qe4#
      • 1...Sa3
        • 2.Qd2#
      • 1...e4
        • 2.Rf5#
      • 1...Sc3!
    • 1.Rf5?
      • threat
        • 2.Sf4#
      • 1...Rf1
        • 2.Rxe5#
      • 1...Re4!
  • Keys
    • 1.Bxe5!
      • threat
        • 2.Qd4#
      • 1...Kxe5
        • 2.Rf5#
      • 1...Rxe5
        • 2.Sf4#
      • 1...Re4
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::R(A),XS(a)
    • S(a);N_GUARD::R(A)
  • Tries
    • Try
      • R(A);
      • Threat
        • QAR2(C),XP(e)
      • Vars
        • P(g);XR(A)::S(B),XP(g)
        • R(c);N_GUARD::QAB1(C),XR(c)
        • B(b);S_CUTR(c)::QAB1(C)
        • S(a);N_GUARD::QAR(C)
        • P(g);OGATEB::R(A)
      • Refutation
        • S(a);
    • Try
      • R(A);P_PINP(g)
      • Threat
        • S(B)
      • Vars
        • R(c);N_GUARD::R1(A),XP(g)
      • Refutation
        • R(c);
  • Actual
    • B(D);XP(g)
    • Threat
      • QAR1(C)
    • Vars
      • K(f);OGATEB,P-FLIGHT,XB(D)::R1(A)
      • R(c);SBLOCK,XB(D)::S(B)
      • R(c);SBLOCK::QAR2(C),XP(e)
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