MESON Chess Problem Database

Problem Display
PID: 76251 (4R3/1K1p2n1/4N3/b1R1N3/3p1pPq/3PkprP/3rnp2/2BB1Q2 w - - 0 1)

Slesarenko, Anatoly Vasilevich

3rd Prize, Rudenko-60 JT, 1998

4R3/1K1p2n1/4N3/b1R1N3/3p1pPq/3PkprP/3rnp2/2BB1Q2

#2

11 + 12

6166 FIDE Album (1998-2000) 2007
56 The Problemist 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc1
      • 2.Sc4#
    • 1...Sg1
      • 2.Sc4#
    • 1...Sc3
      • 2.Sc4#
  • Tries
    • 1.Sxd4?
      • threat
        • 2.Sc2#
      • 1...Kxd4
        • 2.Qxf2#
      • 1...Sxd4
        • 2.Sc4#
      • 1...Sxc1!
    • 1.Sxf4?
      • threat
        • 2.Sd5#
      • 1...Kxf4
        • 2.Sg6#
      • 1...Sxf4
        • 2.Sc4#
      • 1...d5
        • 2.Sxd5#
      • 1...Sc3!
    • 1.Sc7?
      • threat
        • 2.Sd5#
      • 1...Sc3
        • 2.Sc4#
      • 1...d5
        • 2.Sxd5#
      • 1...Bxc7!
  • Keys
    • 1.Sxf3!
      • threat
        • 2.Qxe2#
      • 1...Kxd3
        • 2.Sxf4#
      • 1...Kxf3
        • 2.Sxd4#
      • 1...Sxc1
        • 2.Re5#
      • 1...Sg1
        • 2.Re5#
      • 1...Sc3
        • 2.Bxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(b);N_SPINR(a),XB(A)::S(H)
    • S(b);::S(H)
  • Tries
    • Try
      • S(I);XP(g)
      • Threat
        • S(I)
      • Vars
        • K(d);N_SPINR(a),S_FLIGHT,XS(I)::QAB(C),XP(c)
        • S(b);SBLOCK,XS(I)::R(K)+S(H),DCHECK
      • Refutation
        • S(b);N_SPINR(a),XB(A)
    • Try
      • S(I);XP(h)
      • Threat
        • S(I)
      • Vars
        • K(d);S_FLIGHT,XS(I)::S(H)
        • S(b);SBLOCK,XS(I)::R(K)+S(H),DCHECK
        • P(k);::S(I),XP(k)
      • Refutation
        • S(b);
    • Try
      • S(I);
      • Threat
        • S(I)
      • Vars
        • S(b);::R(K)+S(H),DCHECK
        • P(k);::S(I),XP(k)
      • Refutation
        • B(j);XS(I)
  • Actual
    • S(H);XP(e)
    • Threat
      • QAR1(C),XS(b)
    • Vars
      • K(d);N_SPINR(a),P-FLIGHT,P_SPINS(b),XP(D)::S(I),XP(h)
      • K(d);N_SPINR(a),P-FLIGHT,P_SPINP(c),P_SPINS(b),XS(H)::S(I),XP(g)
      • S(b);N_SPINR(a),XB(A)::R(G)
      • S(b);::R(G)
      • S(b);S_CUTB(j)::B(A),XR(a)
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