MESON Chess Problem Database

Problem Display
PID: 247523 (8/1nK2P2/N1p3Q1/3kNp2/3qrP2/1P6/2r5/3R2bB w - - 0 1)

Ageev, Gennadi Mikhailovich

Etmishev, Eduard Artemevich

Zadachi i Etyudi, 2003

8/1nK2P2/N1p3Q1/3kNp2/3qrP2/1P6/2r5/3R2bB

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Qxc6#
    • 1...Rb2
      • 2.Qxc6#
    • 1...Rd2
      • 2.Qxc6#
    • 1...Re2
      • 2.Qxc6#
    • 1...Rf2
      • 2.Qxc6#
    • 1...Rg2
      • 2.Qxc6#
    • 1...Rh2
      • 2.Qxc6#
    • 1...Rc4
      • 2.bxc4#
    • 1...Rc5
      • 2.Sb4#
    • 1...Sa5
      • 2.Qd6#
    • 1...Sc5
      • 2.Sb4#
      • 2.Qxc6#
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sd8
      • 2.Qd6#
    • 1...c5
      • 2.Qc6#
  • Keys
    • 1.Sxc6!
      • threat
        • 2.Qxf5#
      • 1...Rxc6+
        • 2.Qxc6#
      • 1...Rd2
        • 2.Se7#
      • 1...Rg2
        • 2.Scb4#
      • 1...Sd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • R(b);N_GUARD::QAB1(G),XP(g)
    • R(b);N_GUARD,N_SPINQ(c)::QAB1(G),XP(g)
    • R(b);N_GUARD,N_SPINR(d)::QAB1(G),XP(g)
    • R(b);OGATE::P(C),XR(b)
    • R(b);SBLOCK::S(F)
    • S(h);N_GUARD::QAR1(G)
    • S(h);N_GUARD::QAR1(G),XS(h)
    • P(g);S_CUTR(b)::QAB1(G)
  • Actual
    • S(E);P_SPINS(E),XP(g)
    • Threat
      • QAR2(G),XP(f)
    • Vars
      • R(b);CHECK,OGATE,XS(E)::QAB1(G),XR(b)
      • R(b);N_PINS(E),N_SPINQ(c)::S(E)
      • R(b);N_PINS(E),N_SPINR(d)::S(E)
      • S(h);N_GUARD::QAR1(G),XS(h)
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