MESON Chess Problem Database

Problem Display
PID: 137864 (4BB2/1R2N3/r3kp2/1n1pPR1K/3n4/8/8/3Q4 w - - 0 1)

Slesarenko, Anatoly Vasilevich

2nd Prize=, Moscow Ty., 2009

4BB2/1R2N3/r3kp2/1n1pPR1K/3n4/8/8/3Q4

#2

8 + 6

56 The Problemist 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Qxd5#
    • 1...Se2
      • 2.Qxd5#
    • 1...Sb3
      • 2.Qxd5#
    • 1...Sf3
      • 2.Qxd5#
    • 1...Sxf5
      • 2.Qxd5#
    • 1...Sc6
      • 2.Qxd5#
  • Tries
    • 1.Kg6?
      • threat
        • 2.Bd7#
        • 2.Bf7#
      • 1...Sxf5
        • 2.Qxd5#
      • 1...fxe5
        • 2.Rf6#
      • 1...Rd6
        • 2.Bf7#
      • 1...Sd6
        • 2.Bd7#
      • 1...Sc7!
    • 1.Qg4?
      • threat
        • 2.Qg8#
      • 1...Sxf5
        • 2.Qxf5#
      • 1...fxe5
        • 2.Qg6#
      • 1...Sd6!
    • 1.Qxd4?
      • threat
        • 2.Rxf6#
        • 2.Qxd5#
      • 1...fxe5
        • 2.Qxe5#
        • 2.Qxd5#
      • 1...Rd6
        • 2.Rxf6#
      • 1...Sc3
        • 2.Rxf6#
      • 1...Sc7
        • 2.Rxf6#
      • 1...Sxd4!
  • Keys
    • 1.Sg6!
      • threat
        • 2.Rxf6#
      • 1...Kxf5
        • 2.Qg4#
      • 1...Sxf5
        • 2.Bf7#
      • 1...fxe5
        • 2.Bd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(a);OGATE::QAB1(A),XP(c)
    • S(a);OGATE,XR(C)::QAB1(A),XP(c)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(a);OGATE,XR(C)::QAB1(A),XP(c)
        • P(f);SBLOCK,XP(B)::R1(C)
        • R(d);::B(G)
        • S(b);::B(G)
      • Refutation
        • S(b);
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • S(a);OGATE,P_SPINS(a),XR(C)::QAB1(A),XS(a)
        • P(f);OGATEB,XP(B)::QAR2(A)
      • Refutation
        • S(b);
    • Try
      • Q(A);XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(d);::R1(C),XP(f)
        • S(b);::R1(C),XP(f)
      • Refutation
        • S(b);XQ(A)
  • Actual
    • S(F);
    • Threat
      • R1(C),XP(f)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(C)::QAB1(A)
      • S(a);SBLOCK,XR(C)::B(G)
      • P(f);XP(B)::B(G)
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