MESON Chess Problem Database

Problem Display
PID: 7209 (2bq4/1r3B2/2p1pp2/1pp4R/npk2P1R/1NP2p1K/P1Q5/8 w - - 0 1)

Vukcevich, Milan Radoje

Comm., StrateGems, 1998

2bq4/1r3B2/2p1pp2/1pp4R/npk2P1R/1NP2p1K/P1Q5/8

#2

9 + 12

145 StrateGems 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.Sd2#
      • 2.Sxa5#
    • 1...Qb6
      • 2.Sd2#
    • 1...Qc7
      • 2.Sd2#
    • 1...Qe7
      • 2.Sd2#
      • 2.Sa5#
    • 1...Qd1
      • 2.Sa5#
    • 1...Qd2
      • 2.Sxd2#
      • 2.Sa5#
    • 1...Qd3
      • 2.Sa5#
    • 1...Qd4
      • 2.Sa5#
    • 1...Qd5
      • 2.Sa5#
    • 1...Qd6
      • 2.Sa5#
    • 1...Qd7
      • 2.Sa5#
    • 1...Qe8
      • 2.Sd2#
      • 2.Sa5#
    • 1...Qf8
      • 2.Sd2#
      • 2.Sa5#
    • 1...Qg8
      • 2.Sd2#
      • 2.Sa5#
    • 1...Qh8
      • 2.Sd2#
      • 2.Sa5#
    • 1...Rb6
      • 2.Sa5#
    • 1...Rc7
      • 2.Sa5#
    • 1...Bd7
      • 2.Sd2#
    • 1...Sb2
      • 2.Rxc5#
    • 1...Sxc3
      • 2.Rxc5#
    • 1...Sb6
      • 2.Sa5#
      • 2.Rxc5#
  • Tries
    • 1.Bxe6+?
      • 1...Qd5
        • 2.Sd2#
        • 2.Sa5#
        • 2.f5#
      • 1...Bxe6+!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Qd3#
      • 1...exd5+
        • 2.f5#
      • 1...e5+
        • 2.Rd7#
      • 1...Kxd5
        • 2.Qd3#
      • 1...Qxd5
        • 2.Sa5#
      • 1...bxc3
        • 2.Qe4#
      • 1...cxd5
        • 2.Sd2#
      • 1...Sb2
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 11
  • Sets
    • Q(l);N_GUARD::S(C)
    • Q(l);N_GUARD,N_SPINP(h)::S(C)
    • R(j);S_CUTQ(l)::S(C)
    • B(k);S_CUTQ(l)::S(C)
    • S(b);N_GUARD::R1(H),XP(f)
    • S(b);N_GUARD,P_SPINS(b),XP(D)::R1(H),XP(f)
  • Tries
    • Try
      • B(I);CHECK,P_SPINB(I),XP(h)
      • Refutation
        • B(k);CHECK,XB(I)
  • Actual
    • R(H);N_PINP(h)
    • Threat
      • QAB1(B)
    • Vars
      • P(h);CHECK,P_SPINP(h),XR(H)::R(G)+P(F)
      • P(h);CHECK,OGATEB::B(I)+R(H)
      • K(d);P_SPINP(h),S_FLIGHT,XR(H)::QAR2(B)
      • Q(l);N_GUARD,SBLOCK,XR(H)::S(C)
      • P(c);P_SPINP(c),SBLOCK,XP(D)::QAR2(B)
      • P(g);SBLOCK,XR(H)::S(C)
      • S(b);N_GUARD::R1(H),XP(f)
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