MESON Chess Problem Database

Problem Display
PID: 267292 (Bb6/4R3/1nr1Npb1/RN2k3/2p3Pp/B2p4/6QK/8 w - - 0 1)

Suvorov, Ivan

Zadachi i Etyudi, 2012

Bb6/4R3/1nr1Npb1/RN2k3/2p3Pp/B2p4/6QK/8

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rc7
      • 2.Bd6#
  • Tries
    • 1.Sc3+?
      • 1...Sd5
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Rc5!
    • 1.Sbd4+?
      • 1...Sd5
        • 2.Sxc6#
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Rc5!
    • 1.Sd6+?
      • 1...Sd5
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Rc5!
    • 1.Sa7+?
      • 1...Sd5
        • 2.Sxc6#
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Rc5!
    • 1.Sbc7+?
      • 1...Sd5
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Rc5!
    • 1.Sf4+?
      • 1...Re6
        • 2.Sxg6#
      • 1...Kxf4!
    • 1.Sg5+?
      • 1...Kf4
        • 2.Sh3#
      • 1...Re6!
    • 1.Sec7+?
      • 1...Re6
        • 2.Bd6#
      • 1...Kf4!
    • 1.Sf8+?
      • 1...Re6
        • 2.Sxg6#
      • 1...Kf4!
    • 1.Qd5+?
      • 1...Kxd5+
        • 2.Sd6#
      • 1...Sxd5!
    • 1.Qg3+?
      • 1...Ke4
        • 2.Sc3#
        • 2.Sec7#
      • 1...Kd5
        • 2.Sc3#
        • 2.Sd6#
      • 1...hxg3+!
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qd4#
      • 1...Ke4+
        • 2.Sec7#
      • 1...Kd5+
        • 2.Sd6#
      • 1...Rd6
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(f);N_GUARD,S_CUTB(i)::B(C)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • S(F);CHECK
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • S(F);CHECK
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • S(F);CHECK
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • S(F);CHECK
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • S(G);CHECK
      • Vars
        • R(f);P_SPINR(f)::S(G),XB(h)
      • Refutation
        • K(d);S_FLIGHT,XS(G)
    • Try
      • S(G);CHECK
      • Vars
        • K(d);S_CUTR(f),S_FLIGHT::S(G)
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • S(G);CHECK
      • Vars
        • R(f);P_SPINR(f)::B(C)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • S(G);CHECK
      • Vars
        • R(f);P_SPINR(f)::S(G),XB(h)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);CHECK,P-FLIGHT,P_SPINR(f),S_CUTS(e),XQ(A)::R(E)+S(F)
      • Refutation
        • S(e);XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • P(c);CHECK,XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(d);CHECK,P-FLIGHT,P_SPINR(f)::R(H)+S(G)
      • K(d);CHECK,P-FLIGHT,P_SPINR(f),S_CUTS(e)::R(E)+S(F)
      • R(f);::QAB1(A)
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