MESON Chess Problem Database

Problem Display
PID: 138541 (6Q1/4p3/4p2b/K4k2/8/2R4N/1R6/B2n3B w - - 0 1)

Nesic, Milivoj S

Liga Problemista, 1985/2

6Q1/4p3/4p2b/K4k2/8/2R4N/1R6/B2n3B

#2

7 + 5

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Bg5
      • 2.Qxg5#
    • 1...Bf8
      • 2.Qg5#
  • Tries
    • 1.Rb5+?
      • 1...Kf6
        • 2.Rf3#
      • 1...e5!
    • 1.Rc5+?
      • 1...Kf6
        • 2.Rf2#
      • 1...e5!
    • 1.Rc6?
      • threat
        • 2.Qxe6#
      • 1...Ke5
        • 2.Rb5#
      • 1...Kf6
        • 2.Rf2#
      • 1...e5
        • 2.Qe6#
        • 2.Qg6#
      • 1...Bd2+!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Qxe6#
      • 1...Ke5
        • 2.Rc5#
      • 1...Kf6
        • 2.Rf3#
      • 1...e5
        • 2.Qe6#
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(d);N_GUARD::QAR1(G),XB(d)
    • B(d);N_GUARD::QAR1(G)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(b);P-FLIGHT::B(A)+R(D),DCHECK
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • R(D);CHECK
      • Vars
        • K(b);P-FLIGHT::B(A)+R(C),DCHECK
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • R(D);
      • Threat
        • QAB1(G),XP(c)
      • Vars
        • K(b);P-FLIGHT::B(A)+R(C),DCHECK
        • K(b);P-FLIGHT,P_SPINP(c)::B(A)+R(C),DCHECK
      • Refutation
        • B(d);CHECK
  • Actual
    • R(C);
    • Threat
      • QAB1(G),XP(c)
    • Vars
      • K(b);P-FLIGHT::B(A)+R(D),DCHECK
      • K(b);P-FLIGHT,P_SPINP(c)::B(A)+R(D),DCHECK
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