MESON Chess Problem Database

Problem Display
PID: 7403 (8/3pN1B1/B7/4n1r1/1K1kpR2/1ppbn3/2PR1Q2/5q2 w - - 0 1)

Rosberger, Jack

StrateGems, 1999

8/3pN1B1/B7/4n1r1/1K1kpR2/1ppbn3/2PR1Q2/5q2

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Rxd3#
    • 1...Qh3
      • 2.Rxd3#
    • 1...Qa1
      • 2.Rxd3#
    • 1...Qb1
      • 2.Rxd3#
    • 1...Qc1
      • 2.Rxd3#
    • 1...Qe1
      • 2.Rxd3#
    • 1...Qg1
      • 2.Rxd3#
    • 1...Qh1
      • 2.Rxd3#
    • 1...Qxf2
      • 2.Rxd3#
    • 1...cxd2
      • 2.c3#
    • 1...d5
      • 2.Sc6#
  • Keys
    • 1.Bb7!
      • threat
        • 2.Rxe4#
      • 1...cxd2
        • 2.c3#
      • 1...Qg2
        • 2.Rxd3#
      • 1...Qh1
        • 2.Rxd3#
      • 1...Rg4
        • 2.Sf5#
      • 1...d5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(a);N_GUARD::R1(B),XB(d)
    • Q(a);N_GUARD,N_SPINS(e),P_SPINS(h),XQ(C)::R1(B),XB(d)
    • P(c);N_SPINB(d),OGATE,XR(B)::P(A)
    • P(j);N_GUARD,SBLOCK::S(G)
  • Actual
    • B(F);
    • Threat
      • R1(E),XP(g)
    • Vars
      • P(c);N_SPINB(d),OGATE,XR(B)::P(A)
      • Q(a);N_GUARD::R1(B),XB(d)
      • R(i);N_GUARD::S(G)
      • P(j);N_GUARD,SBLOCK::S(G)
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