MESON Chess Problem Database

Problem Display
PID: 197059 (1n2K3/6p1/1B1kPp2/2NPN3/r4P2/8/6R1/1Q1r2qB w - - 0 1)

Zhuravlev, Andrey Nikolaevich

Zadachi i Etyudi, 1996

1n2K3/6p1/1B1kPp2/2NPN3/r4P2/8/6R1/1Q1r2qB

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Rd2#
  • Tries
    • 1.Sc4+?
      • 1...Kxd5
        • 2.Qe4#
      • 1...Rxc4!
    • 1.Rd2?
      • threat
        • 2.Sb7#
        • 2.Sf7#
      • 1...Qxc5
        • 2.Sf7#
      • 1...Rxf4
        • 2.Sf7#
      • 1...fxe5
        • 2.Sb7#
      • 1...Ra7
        • 2.Se4#
        • 2.Sc4#
      • 1...Qg6+!
    • 1.Rg5?
      • threat
        • 2.Sb7#
        • 2.Sf7#
      • 1...Qxc5
        • 2.Sf7#
      • 1...Qxh1
        • 2.Sf7#
      • 1...fxe5
        • 2.Sb7#
        • 2.fxe5#
      • 1...Qg2
        • 2.Sf7#
      • 1...Re4
        • 2.Sf7#
      • 1...Ra7
        • 2.Sc4#
      • 1...Rxd5!
    • 1.Qb5?
      • threat
        • 2.Sb7#
      • 1...Kxd5
        • 2.Rd2#
      • 1...Qxc5
        • 2.Qxc5#
      • 1...Rxd5
        • 2.Sf7#
      • 1...Ra7
        • 2.Se4#
      • 1...Rxf4!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Sf7#
      • 1...Kxd5
        • 2.Rd2#
      • 1...Rxd5
        • 2.Sb7#
      • 1...fxe5
        • 2.Qxe5#
      • 1...Ra7
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(d);OGATEB,P-FLIGHT,XP(F)::B(B)+R(C),DCHECK
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(d);P-FLIGHT,XP(F)::QAB1(A)
      • Refutation
        • R(c);XS(G)
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);XS(E)::S(G)
        • R(c);XP(D)::S(G)
        • P(e);XS(G)::S(E)
      • Refutation
        • Q(b);CHECK
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);XS(E)::S(G)
        • Q(b);XB(B)::S(G)
        • Q(b);::S(G)
        • R(c);::S(G)
        • R(c);N_GUARD::S(G)
      • Refutation
        • R(a);XP(F)
    • Try
      • Q(A);
      • Threat
        • S(E)
      • Vars
        • K(d);OGATEB,P-FLIGHT,XP(F)::B(B)+R(C),DCHECK
        • Q(b);OGATE,XS(E)::QAB1(A),XQ(b)
        • R(a);SBLOCK,XP(F)::S(G)
        • R(c);N_GUARD::S(E)
      • Refutation
        • R(c);XP(D)
  • Actual
    • Q(A);
    • Threat
      • S(G)
    • Vars
      • K(d);OGATEB,P-FLIGHT,XP(F)::B(B)+R(C),DCHECK
      • R(a);SBLOCK,XP(F)::S(E)
      • P(e);OGATE,XS(G)::QAB1(A),XP(e)
      • R(c);N_GUARD::S(G)
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