MESON Chess Problem Database

Problem Display
PID: 262918 (1K6/5Q2/1N1PpP1P/2p1kn2/4PR2/3Rp2b/1r1bN3/Br6 w - - 0 1)

Sukhodolov, Nikolai

Zadachi i Etyudi, 2008

1K6/5Q2/1N1PpP1P/2p1kn2/4PR2/3Rp2b/1r1bN3/Br6

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bb4
      • 2.Sc4#
      • 2.Sd7#
  • Tries
    • 1.Ka7?
      • threat
        • 2.Sc4#
        • 2.Sd7#
      • 1...Sxd6
        • 2.Sd7#
      • 1...Sd4
        • 2.Sc4#
      • 1...Rc1
        • 2.Sd7#
      • 1...c4
        • 2.Sxc4#
        • 2.Sd7#
      • 1...Rxa1+!
    • 1.Kc7?
      • threat
        • 2.Sc4#
        • 2.Sd7#
      • 1...Sxd6
        • 2.Sd7#
      • 1...Rc1
        • 2.Sd7#
      • 1...c4
        • 2.Sxc4#
        • 2.Sd7#
      • 1...Ba5!
    • 1.Ka8?
      • threat
        • 2.Sc4#
        • 2.Sd7#
      • 1...Sxd6
        • 2.Sd7#
      • 1...Sd4
        • 2.Sc4#
      • 1...Rc1
        • 2.Sd7#
      • 1...c4
        • 2.Sxc4#
        • 2.Sd7#
      • 1...Rxa1+!
    • 1.Bxb2+?
      • 1...Bc3
        • 2.Sc4#
        • 2.Sd7#
      • 1...Sd4
        • 2.Sc4#
      • 1...Rxb2!
    • 1.Rb3?
      • threat
        • 2.Sc4#
      • 1...Kxd6
        • 2.Qc7#
      • 1...Sxd6
        • 2.Sd7#
      • 1...c4
        • 2.Sxc4#
      • 1...Rc1!
    • 1.exf5?
      • threat
        • 2.Qxe6#
      • 1...exf5
        • 2.Rd5#
        • 2.Qe7#
      • 1...Bxf5!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Sd7#
      • 1...Kxf6
        • 2.Qg7#
      • 1...Sd4
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(K);N_SPINS(F),S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(h);XP(G)::S(F)
        • S(h);N_SPINR(b)::S(F)
        • R(a);::S(F)
      • Refutation
        • R(a);CHECK,N_SPINR(b),XB(A)
    • Try
      • K(K);N_SPINS(F),S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(h);XP(G)::S(F)
        • R(a);::S(F)
      • Refutation
        • B(c);P_PINS(F)
    • Try
      • K(K);N_SPINS(F),P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(h);XP(G)::S(F)
        • S(h);N_SPINR(b)::S(F)
        • R(a);::S(F)
      • Refutation
        • R(a);CHECK,N_SPINR(b),XB(A)
    • Try
      • B(A);CHECK,N_SPINS(F),XR(b)
      • Vars
        • S(h);P_SPINS(h)::S(F)
      • Refutation
        • R(a);P_PINS(F),XB(A)
    • Try
      • R(C);N_SPINS(F)
      • Threat
        • S(F)
      • Vars
        • K(g);N_SPINR(b),OGATEB,S_FLIGHT,XP(G)::QAB1(J)
        • S(h);SBLOCK,XP(G)::S(F)
        • P(f);::S(F),XP(f)
      • Refutation
        • R(a);
    • Try
      • P(D);XS(h)
      • Threat
        • QAR1(J),XP(i)
      • Refutation
        • B(e);XP(D)
  • Actual
    • Q(J);N_SPINS(F)
    • Threat
      • S(F)
    • Vars
      • K(g);OGATEB,P_SPINS(h),S_FLIGHT,XP(H)::QAB1(J)
      • S(h);N_SPINR(b)::S(F)
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