MESON Chess Problem Database

Problem Display
PID: 15382 (3RKB2/r1p2Pp1/N1Q4q/2NPp1pp/R1PkP3/8/3P2B1/4n3 w - - 0 1)

Lender, Baruch

2nd Prize, Gevers MT, 1983

3RKB2/r1p2Pp1/N1Q4q/2NPp1pp/R1PkP3/8/3P2B1/4n3

#2

13 + 9

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc6+
      • 2.dxc6#
    • 1...Qe6+
      • 2.dxe6#
    • 1...Sd3
      • 2.Sb3#
  • Tries
    • 1.Se6+?
      • 1...Qxe6+
        • 2.dxe6#
      • 1...Kd3!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Sb3#
      • 1...Qxc6+
        • 2.Sxc6#
      • 1...Qe6+
        • 2.Sxe6#
      • 1...Kxc4
        • 2.Sba6#
      • 1...Sxg2
        • 2.Sc2#
      • 1...Sf3
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(f);CHECK,OGATE,XQ(I)::R(K)+P(G),XQ(f)
    • Q(f);CHECK,OGATE::R(K)+P(G),XQ(f)
    • S(a);SBLOCK::S(F)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • Q(f);CHECK,OGATE,XS(F)::R(K)+P(G),XQ(f)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(H);
    • Threat
      • S(F)
    • Vars
      • Q(f);CHECK,XQ(I)::S(H),XQ(f)
      • Q(f);CHECK,N_GUARD::S(F),XQ(f)
      • K(b);P-FLIGHT,XP(D)::R(C)+S(H)
      • S(a);N_GUARD,XB(B)::S(H)
      • S(a);N_GUARD::S(H)
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