MESON Chess Problem Database

Problem Display
PID: 239191 (5N1b/1p3p2/3p4/1N1kP3/p2P1r2/K4PQn/8/2RB4 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Hlas l'udu, 1985

5N1b/1p3p2/3p4/1N1kP3/p2P1r2/K4PQn/8/2RB4

#2

9 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf3+
      • 2.Bxf3#
      • 2.Qxf3#
    • 1...Rxd4
      • 2.Sc7#
    • 1...dxe5
      • 2.Rc5#
    • 1...f5
      • 2.Qg8#
    • 1...f6
      • 2.Qg8#
  • Tries
    • 1.Kxa4?
      • threat
        • 2.Bb3#
      • 1...Rxf3
        • 2.Bxf3#
        • 2.Qxf3#
      • 1...Rxd4+!
    • 1.Qf2?
      • threat
        • 2.Sc7#
        • 2.Qa2#
      • 1...Rxf3+
        • 2.Bxf3#
        • 2.Qxf3#
      • 1...Rxd4
        • 2.Qxd4#
      • 1...dxe5
        • 2.Rc5#
        • 2.Qa2#
      • 1...Sxf2!
    • 1.Qh2?
      • threat
        • 2.Qa2#
      • 1...Rxf3+
        • 2.Bxf3#
      • 1...Rxd4
        • 2.Sc7#
      • 1...Sf2!
    • 1.Qxf4?
      • threat
        • 2.Sc7#
        • 2.Qe4#
        • 2.Qxf7#
      • 1...dxe5
        • 2.Rc5#
        • 2.Qe4#
        • 2.Qxf7#
      • 1...Bf6
        • 2.Sc7#
        • 2.Qe4#
      • 1...Sf2
        • 2.Sc7#
        • 2.Qxf7#
      • 1...Sg5
        • 2.Sc7#
      • 1...f5
        • 2.Sc7#
      • 1...f6
        • 2.Sc7#
        • 2.Qe4#
      • 1...Sxf4!
  • Keys
    • 1.Bxa4!
      • threat
        • 2.Bb3#
      • 1...Rxf3+
        • 2.Qxf3#
      • 1...Rxd4
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(c);SBLOCK,XP(F)::S(G)
    • P(e);N_GUARD,XP(H)::R1(A)
    • P(g);OGATEB::QAB(E)
  • Tries
    • Try
      • K(C);P-FLIGHT,P_SPINP(F),XP(b)
      • Threat
        • B(B)
      • Refutation
        • R(c);CHECK,XP(F)
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);OGATE,XP(F)::QAR1(E),XR(c)
      • Refutation
        • S(a);XQ(E)
    • Try
      • Q(E);
      • Threat
        • QAB(E)
      • Vars
        • R(c);CHECK,OGATE,XP(D)::B(B),XR(c)
        • R(c);SBLOCK,XP(F)::S(G)
      • Refutation
        • S(a);
    • Try
      • Q(E);XR(c)
      • Threat
        • DUALS(3)
      • Vars
        • S(a);::S(G)
        • P(g);::S(G)
      • Refutation
        • S(a);XQ(E)
  • Actual
    • B(B);XP(b)
    • Threat
      • B(B)
    • Vars
      • R(c);CHECK,OGATE,XP(D)::QAB(E),XR(c)
      • R(c);SBLOCK,XP(F)::S(G)
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