MESON Chess Problem Database

Problem Display
PID: 41112 (b6b/4Bpq1/1n2p1p1/1P1kP3/rp2Rp2/r1p1pQ2/N1p3K1/NR6 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

StrateGems, 2002

b6b/4Bpq1/1n2p1p1/1P1kP3/rp2Rp2/r1p1pQ2/N1p3K1/NR6

#2

9 + 15

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Sxb4#
    • 1...Ra6
      • 2.Sxb4#
    • 1...Ra7
      • 2.Sxb4#
    • 1...e2
      • 2.Qd3#
    • 1...b3
      • 2.Sxc3#
  • Tries
    • 1.Rbxb4?
      • threat
        • 2.Rxe3#
      • 1...Qxe5
        • 2.Red4#
      • 1...Rxb4
        • 2.Sxb4#
      • 1...e2
        • 2.Rxe2#
        • 2.Re3#
        • 2.Qd3#
      • 1...Sc4!
    • 1.Qxf4?
      • threat
        • 2.Rd4#
      • 1...b3
        • 2.Sxc3#
      • 1...Qxe5!
  • Keys
    • 1.Sxc2!
      • threat
        • 2.Rd1#
      • 1...Qxe5
        • 2.Rd4#
      • 1...Sc4
        • 2.Rxe3#
      • 1...e2
        • 2.Qd3#
      • 1...b3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(e);N_GUARD::S(C),XP(f)
    • P(d);OGATE::QAR2(E)
    • P(f);N_GUARD,S_CUTR(b)::S(C),XP(c)
  • Tries
    • Try
      • R(B);XP(f)
      • Threat
        • QAB(E)+R(F),XP(d)
      • Vars
        • Q(m);SBLOCK,XP(H)::QAB(E)+R(F),DCHECK
        • R(e);XR(B)::S(C),XR(e)
      • Refutation
        • S(i);
    • Try
      • Q(E);XP(g)
      • Threat
        • R1(F)
      • Vars
        • P(f);N_GUARD,S_CUTR(b)::S(C),XP(c)
      • Refutation
        • Q(m);XP(H)
  • Actual
    • S(A);XP(a)
    • Threat
      • R(B)
    • Vars
      • Q(m);SBLOCK,XP(H)::QAB(E)+R(F),DCHECK
      • S(i);SBLOCK::QAB(E)+R(F),XP(d)
      • P(d);OGATE::QAR2(E)
      • P(f);N_GUARD,S_CUTR(b)::S(C),XP(c)
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