MESON Chess Problem Database

Problem Display
PID: 268560 (5BB1/R1r2P2/1Nb1k3/b3p1PK/4p1P1/7p/5r2/5R2 w - - 0 1)

Lebedev, Viacheslav Aleksandr

British Chess Magazine, 1934

5BB1/R1r2P2/1Nb1k3/b3p1PK/4p1P1/7p/5r2/5R2

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Rf6#
    • 1...Rb2
      • 2.Rf6#
    • 1...Rc2
      • 2.Rf6#
    • 1...Rd2
      • 2.Rf6#
    • 1...Re2
      • 2.Rf6#
    • 1...Rg2
      • 2.Rf6#
    • 1...Rh2
      • 2.Rf6#
    • 1...Rf5
      • 2.gxf5#
    • 1...Rf6
      • 2.Rxf6#
    • 1...Rfxf7
      • 2.Rf6#
    • 1...Be8
      • 2.fxe8Q#
      • 2.fxe8R#
  • Tries
    • 1.Ba3?
      • threat
        • 2.f8S#
      • 1...Rfxf7
        • 2.Rf6#
      • 1...Rcxf7
        • 2.Re7#
      • 1...Be8
        • 2.fxe8Q#
        • 2.fxe8R#
      • 1...Bb4!
    • 1.Bb4?
      • threat
        • 2.f8S#
      • 1...Rfxf7
        • 2.Rf6#
      • 1...Rcxf7
        • 2.Re7#
      • 1...Be8
        • 2.fxe8Q#
        • 2.fxe8R#
      • 1...Bxb4!
  • Keys
    • 1.Bc5!
      • threat
        • 2.f8S#
      • 1...Rfxf7
        • 2.Rf6#
      • 1...Rcxf7
        • 2.Re7#
      • 1...Be8
        • 2.fxe8Q#
        • 2.fxe8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • R(a);OGATE::R1(A)
    • R(a);OGATE,P_PINP(C)::P(B),XR(a)
    • R(a);OGATE::R1(A),XR(a)
    • R(a);OGATE,P_SPINR(a),XP(G)::R1(A)
    • B(f);OGATE,P_PINP(G)::PXB(f)=Q
  • Tries
    • Try
      • B(H);
      • Threat
        • P=S
      • Vars
        • R(a);OGATE,P_SPINR(a),XP(G)::R1(A)
        • R(h);OGATE,P_SPINR(h),XP(G)::R1(F)
        • B(f);OGATE,P_PINP(G)::PXB(f)=Q
      • Refutation
        • B(d);
    • Try
      • B(H);
      • Threat
        • P=S
      • Vars
        • R(a);OGATE,P_SPINR(a),XP(G)::R1(A)
        • R(h);OGATE,P_SPINR(h),XP(G)::R1(F)
        • B(f);OGATE,P_PINP(G)::PXB(f)=Q
      • Refutation
        • B(d);XB(H)
  • Actual
    • B(H);
    • Threat
      • P=S
    • Vars
      • R(a);OGATE,P_SPINR(a),XP(G)::R1(A)
      • R(h);OGATE,P_SPINR(h),XP(G)::R1(F)
      • B(f);OGATE,P_PINP(G)::PXB(f)=Q
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