MESON Chess Problem Database

Problem Display
PID: 275759 (2b3B1/Q7/3B1p1K/3p1k1p/3PNnNn/3P1r1P/5R2/5r2 w - - 0 1)

Oltean, Gligor

Buletin Problemistic, 1999

2b3B1/Q7/3B1p1K/3p1k1p/3PNnNn/3P1r1P/5R2/5r2

#2

10 + 9

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf2
      • 2.Sg3#
      • 2.Se3#
    • 1...Re3
      • 2.Sxe3#
    • 1...Rg3
      • 2.Sxg3#
    • 1...Se2
      • 2.Se3#
    • 1...Sfg2
      • 2.Sg3#
    • 1...Sxd3
      • 2.Sg3#
    • 1...Sxh3
      • 2.Se3#
    • 1...Se6
      • 2.Sg3#
      • 2.Se3#
    • 1...Sfg6
      • 2.Sg3#
      • 2.Se3#
  • Tries
    • 1.Rxf3?
      • threat
        • 2.Sg3#
        • 2.Se3#
      • 1...dxe4
        • 2.Se3#
        • 2.Qc5#
        • 2.Qa5#
      • 1...hxg4
        • 2.Sg3#
      • 1...Re1
        • 2.Sg3#
        • 2.Rxf4#
      • 1...Rg1
        • 2.Se3#
        • 2.Rxf4#
      • 1...Sg2
        • 2.Sg3#
        • 2.Qh7#
      • 1...Rxf3!
    • 1.Qd7+?
      • 1...Se6
        • 2.Sg3#
        • 2.Se3#
        • 2.Bxe6#
      • 1...Bxd7!
    • 1.Qh7+?
      • 1...Sfg6
        • 2.Sg3#
        • 2.Se3#
      • 1...Shg6!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qxf6#
      • 1...Rxd3
        • 2.Qxd5#
      • 1...Rxh3
        • 2.Qxh5#
      • 1...Sxd3
        • 2.Sg3#
      • 1...Sxh3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD,P_SPINS(c)::S(F),XR(b)
    • R(b);N_GUARD,P_SPINS(c)::S(E),XR(b)
    • S(c);P_SPINR(b)::S(F)
    • S(c);P_SPINR(b)::S(E)
    • S(c);P_SPINR(b),XP(B)::S(E)
    • S(c);P_SPINR(b),XP(C)::S(F)
  • Tries
    • Try
      • R(A);P_PINS(c),XR(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(g);XS(F)::S(E)
      • Refutation
        • R(a);N_SPINS(c),XR(A)
    • Try
      • Q(I);CHECK
      • Refutation
        • B(i);XQ(I)
    • Try
      • Q(I);CHECK
      • Refutation
        • S(d);P_SPINS(d)
  • Actual
    • Q(I);P_PINP(h)
    • Threat
      • QAR1(I),XP(h)
    • Vars
      • R(b);P_SPINS(c),XP(B)::QAR2(I),XP(e)
      • R(b);P_SPINS(c),XP(C)::QAR2(I),XP(g)
      • S(c);P_SPINR(b),XP(B)::S(E)
      • S(c);P_SPINR(b),XP(C)::S(F)
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