MESON Chess Problem Database

Problem Display
PID: 104471 (2N2nK1/2p3p1/1r6/p1k1N3/P1P2r1R/4P3/8/2Q1B1b1 w - - 0 1)

Nesic, Milivoj S

Saletic, Slobodan

Byletyn Katowice, 1966

2N2nK1/2p3p1/1r6/p1k1N3/P1P2r1R/4P3/8/2Q1B1b1

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Qxc4#
    • 1...Ra6
      • 2.Qa3#
    • 1...Rc6
      • 2.Sd3#
      • 2.Qa3#
    • 1...Rd6
      • 2.Qa3#
    • 1...Re6
      • 2.Qa3#
    • 1...Rf6
      • 2.Qa3#
    • 1...Rg6
      • 2.Qa3#
    • 1...Rh6
      • 2.Qa3#
    • 1...c6
      • 2.Sd3#
  • Tries
    • 1.Qd1?
      • threat
        • 2.Qd5#
      • 1...Rxc4
        • 2.Rxc4#
      • 1...Rd4
        • 2.Qxd4#
      • 1...c6
        • 2.Qd6#
      • 1...Rd6!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qd5#
      • 1...Rxc4
        • 2.Rxc4#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Rd6
        • 2.Qxa5#
      • 1...c6
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(b);OGATE,P_SPINR(b),XP(E)::QAR1(A),XR(b)
    • R(e);N_GUARD::QAB(A)
    • P(f);SBLOCK::S(G)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • R(b);OGATE,XP(E)::R1(F),XR(b)
        • R(b);N_GUARD::QAB1(A),XR(b)
        • P(f);N_GUARD,S_CUTR(e)::QAB1(A)
      • Refutation
        • R(e);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • R(b);OGATE,XP(E)::R1(F),XR(b)
      • R(b);N_GUARD::QAB1(A),XR(b)
      • R(e);N_GUARD::QAR2(A),XP(c)
      • P(f);N_GUARD,S_CUTR(e)::QAB1(A)
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