MESON Chess Problem Database

Problem Display
PID: 47854 (6bq/3Q1pb1/K1N5/6p1/4k3/5p2/6Rn/2B2Rn1 w - - 0 1)

Stepochkin, Anatoly Viktorovich

4th Comm., Pilchenko-50 JT (Uralski Problemist), 2002

6bq/3Q1pb1/K1N5/6p1/4k3/5p2/6Rn/2B2Rn1

#2

6 + 9

56 The Problemist 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Sh3
      • 2.Re1#
    • 1...Sxf1
      • 2.Rg4#
    • 1...Sg4
      • 2.Rxg4#
    • 1...fxg2
      • 2.Qf5#
  • Tries
    • 1.Rd1?
      • threat
        • 2.Qd3#
        • 2.Qd5#
      • 1...Be5
        • 2.Qd3#
      • 1...f5
        • 2.Qd3#
      • 1...f6
        • 2.Rd4#
        • 2.Qd3#
      • 1...Bd4!
    • 1.Re2+?
      • 1...fxe2
        • 2.Qf5#
      • 1...Sxe2!
    • 1.Rxg5?
      • threat
        • 2.Qf5#
        • 2.Qd5#
      • 1...Bd4
        • 2.Qf5#
      • 1...Qh3
        • 2.Qd5#
      • 1...Qh7
        • 2.Qd5#
      • 1...Bh7
        • 2.Qd5#
      • 1...f5
        • 2.Qxf5#
      • 1...f6
        • 2.Qf5#
        • 2.Qd4#
      • 1...Be5!
  • Keys
    • 1.Rxf3!
      • threat
        • 2.Qf5#
        • 2.Qd3#
      • 1...Kxf3
        • 2.Qd5#
      • 1...Sgxf3
        • 2.Re2#
      • 1...Shxf3
        • 2.Rg4#
      • 1...Qh3
        • 2.Qd3#
      • 1...Qh7
        • 2.Qd3#
      • 1...Bd4
        • 2.Qf5#
      • 1...Be5
        • 2.Qd3#
      • 1...Bh7
        • 2.Qd3#
      • 1...f5
        • 2.Qxf5#
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 4
  • Sets
    • S(a);N_GUARD::R(B)
    • S(b);N_GUARD,XR(B)::R(C)
    • S(b);N_GUARD::R(C),XS(b)
    • P(c);XR(C)::QAB1(F)
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(g);::QAB1(F)
        • P(f);SBLOCK::QAB1(F)
      • Refutation
        • B(g);
    • Try
      • R(C);CHECK
      • Vars
        • P(c);XR(C)::QAB1(F)
      • Refutation
        • S(a);XR(C)
    • Try
      • R(C);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • B(g);::QAB1(F)
        • Q(i);::QAB1(F)
        • B(h);::QAB1(F)
        • P(f);::QAB1(F),XP(f)
      • Refutation
        • B(g);
  • Actual
    • R(B);XP(c)
    • Threat
      • DUALS(2)
    • Vars
      • K(d);S_FLIGHT,XR(B)::QAB(F)
      • S(a);N_GUARD,SBLOCK,XR(B)::R(C)
      • S(b);N_GUARD,SBLOCK,XR(B)::R(C)
      • Q(i);::QAB1(F)
      • B(g);::QAB1(F)
      • B(h);::QAB1(F)
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