MESON Chess Problem Database

Problem Display
PID: 104499 (4Rb2/1p2r1P1/4PPp1/1B1k2K1/n1N1N1Q1/3p4/4r1p1/4R1B1 w - - 0 1)

Nesic, Milivoj S

Match: Macedonia - Serbia, 1983

4Rb2/1p2r1P1/4PPp1/1B1k2K1/n1N1N1Q1/3p4/4r1p1/4R1B1

#2

11 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe4
      • 2.Qxe4#
    • 1...Rxe6
      • 2.Qxe6#
    • 1...Sb2
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Sc5
      • 2.Sc3#
    • 1...Sb6
      • 2.Sc3#
  • Tries
    • 1.Qf4?
      • threat
        • 2.Qe5#
      • 1...Kxe6
        • 2.g8Q#
        • 2.g8B#
      • 1...Rxe4
        • 2.Qd6#
        • 2.Qxe4#
      • 1...Rxe6!
    • 1.fxe7?
      • threat
        • 2.Sf6#
        • 2.Rd8#
      • 1...Rxe4
        • 2.Rd8#
        • 2.Qxe4#
      • 1...Bxg7
        • 2.Rd8#
      • 1...Rf2
        • 2.Rd8#
      • 1...Re3
        • 2.Rd8#
      • 1...Sc5
        • 2.Sc3#
        • 2.Sf6#
      • 1...Sb6
        • 2.Sc3#
        • 2.Sf6#
      • 1...Bxe7+!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qe5#
      • 1...Kxe4
        • 2.Qxg2#
      • 1...Kxe6
        • 2.g8Q#
        • 2.g8B#
      • 1...Rxe4
        • 2.Qd6#
      • 1...Rxe6
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(a);OGATE,XS(D)::QAB1(E),XR(a)
    • R(h);OGATE,XP(H)::QAB1(E),XR(h)
    • S(d);N_GUARD::S(D)
    • S(d);N_GUARD::S(D),XS(d)
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • K(e);P_SPINR(h),S_FLIGHT,XP(H)::P=Q
      • Refutation
        • R(h);XP(H)
    • Try
      • P(I);XR(h)
      • Threat
        • DUALS(2)
      • Vars
        • B(i);XP(J)::R(K)
        • R(a);::R(K)
      • Refutation
        • B(i);CHECK,XP(I)
  • Actual
    • Q(E);
    • Threat
      • QAR1(E)
    • Vars
      • K(e);OGATEB,P_SPINR(a),S_FLIGHT,XS(D)::QAB(E),XP(b)
      • K(e);P_SPINR(h),S_FLIGHT,XP(H)::P=Q
      • R(a);XS(D)::QAR1(E)
      • R(h);XP(H)::QAR2(E),XP(c)
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Developed and maintained by Brian Stephenson.
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