MESON Chess Problem Database

Problem Display
PID: 249733 (4RK1B/b4Q1p/3Pp1pN/r2r2p1/4k3/R3PNP1/4Pq2/1b1B4 w - - 0 1)

Musante, Horacio Luis

Jerusalem Post, 1951

(First published on Fri Jun 15 1951)

4RK1B/b4Q1p/3Pp1pN/r2r2p1/4k3/R3PNP1/4Pq2/1b1B4

#2

12 + 10

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf3
      • 2.Qxf3#
      • 2.exf3#
    • 1...Bd4
      • 2.Sd2#
    • 1...g4
      • 2.Qf4#
    • 1...e5
      • 2.Sxg5#
  • Tries
    • 1.Qf5+?
      • 1...gxf5
        • 2.Sxg5#
      • 1...Rxf5+!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Rxe6#
      • 1...Qxf3+
        • 2.exf3#
      • 1...Qxg3
        • 2.Sd2#
      • 1...Qxe2
        • 2.Sxg5#
      • 1...Bd4
        • 2.Qxb1#
      • 1...e5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(i);S_CUTR(e)::S(E)
    • P(f);N_GUARD::QAR1(I)
    • P(g);S_CUTR(e)::S(E),XP(f)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • P(h);XQ(I)::S(E),XP(f)
      • Refutation
        • R(e);CHECK,XQ(I)
  • Actual
    • Q(I);P_PINR(e),P_SPINS(E)
    • Threat
      • R(J),XP(g)
    • Vars
      • Q(b);CHECK,OGATE,XS(E)::P(B),XQ(b)
      • Q(b);N_PINS(E),XP(F)::S(E)
      • Q(b);N_PINS(E),XP(B)::S(E),XP(f)
      • B(i);::QAB(I),XB(a)
      • P(g);OGATE::R1(J),XP(g)
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