MESON Chess Problem Database

Problem Display
PID: 275016 (4R1b1/BB1N2K1/3p2R1/3N1k2/8/2ppp3/3brP1n/3Q3n w - - 0 1)

Lamba, Stelian

Buletin Problemistic, 1984

4R1b1/BB1N2K1/3p2R1/3N1k2/8/2ppp3/3brP1n/3Q3n

#2

9 + 10

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Qh5#
    • 1...Rxf2
      • 2.Qh5#
    • 1...Bc1
      • 2.Qxd3#
    • 1...Be1
      • 2.Qxd3#
  • Tries
    • 1.Rf8+?
      • 1...Ke4
        • 2.Sxc3#
        • 2.Rf4#
        • 2.Qa4#
      • 1...Bf7!
    • 1.fxe3?
      • threat
        • 2.Se7#
      • 1...Rxe3
        • 2.Qh5#
      • 1...Bxe3
        • 2.Qxd3#
      • 1...Bxd5!
  • Keys
    • 1.Bxe3!
      • threat
        • 2.Se7#
        • 2.Rg5#
      • 1...Rxe3
        • 2.Qh5#
      • 1...Bxe3
        • 2.Qxd3#
      • 1...Bxd5
        • 2.Rg5#
      • 1...Be6
        • 2.Se7#
      • 1...Sf3
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • R(c);OGATE::QAR2(A)
    • R(c);OGATE,XP(B)::QAR2(A)
    • B(b);OGATE::QAB(A),XP(f)
  • Tries
    • Try
      • R(I);CHECK
      • Refutation
        • B(j);P_SPINB(j)
    • Try
      • P(B);XP(g)
      • Threat
        • S(C)
      • Vars
        • R(c);OGATE,XP(B)::QAR2(A)
        • B(b);OGATE,XP(B)::QAB(A),XP(f)
      • Refutation
        • B(j);XS(C)
  • Actual
    • B(E);XP(g)
    • Threat
      • DUALS(2)
    • Vars
      • R(c);OGATE,XB(E)::QAR2(A)
      • B(b);OGATE,XB(E)::QAB(A),XP(f)
      • B(j);XS(C)::R1(D)
      • B(j);::S(C)
      • S(d);::S(C)
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