MESON Chess Problem Database

Problem Display
PID: 80138 (2Kn4/3Q4/1pPN1Np1/RPkp2R1/3p4/P5B1/5n2/5b1q w - - 0 1)

Nesic, Milivoj S

1st Comm., Probleme, 1962-1964

2Kn4/3Q4/1pPN1Np1/RPkp2R1/3p4/P5B1/5n2/5b1q

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Rxd5#
    • 1...Qh2
      • 2.Rxd5#
    • 1...Qh3
      • 2.Rxd5#
    • 1...Qh4
      • 2.Rxd5#
    • 1...Qh6
      • 2.Rxd5#
    • 1...Qh7
      • 2.Rxd5#
    • 1...Qh8
      • 2.Rxd5#
    • 1...Bxb5
      • 2.Rxb5#
    • 1...Se4
      • 2.Rxd5#
    • 1...Sxc6
      • 2.Qxc6#
    • 1...d3
      • 2.Bxf2#
    • 1...bxa5
      • 2.Qa7#
  • Tries
    • 1.Qg4?
      • threat
        • 2.Sd7#
      • 1...Qh7
        • 2.Rxd5#
      • 1...Bxb5!
    • 1.Qe6?
      • threat
        • 2.Sd7#
      • 1...d3
        • 2.Bxf2#
        • 2.Qe3#
      • 1...Qh7
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Bxb5!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Sd7#
      • 1...Bxb5
        • 2.Qc2#
      • 1...d3
        • 2.Qxf2#
      • 1...Qh7
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 9
  • Sets
    • Q(b);N_GUARD::R1(E),XP(f)
    • Q(b);N_GUARD,P_PINQ(I)::R1(E),XP(f)
    • B(a);OGATE,P_SPINB(a),XP(D)::R1(C),XB(a)
    • S(c);S_CUTQ(b)::R1(E),XP(f)
    • S(i);OGATE,XP(F)::QAR1(I),XS(i)
    • P(d);OGATEB::B(B),XS(c)
    • P(g);OGATEB,XR(C)::QAB(I)
  • Tries
    • Try
      • Q(I);
      • Threat
        • S(H)
      • Vars
        • Q(b);N_GUARD::R1(E),XP(f)
      • Refutation
        • B(a);P_SPINB(a),XP(D)
    • Try
      • Q(I);
      • Threat
        • S(H)
      • Refutation
        • B(a);P_SPINB(a),XP(D)
  • Actual
    • Q(I);
    • Threat
      • S(H)
    • Vars
      • B(a);N_GUARD,P_SPINB(a),XP(D)::QAR(I)
      • P(d);OGATEB::QAB(I),XS(c)
      • Q(b);N_GUARD::QAR1(I),XP(f)
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