MESON Chess Problem Database

Problem Display
PID: 157385 (4R3/2pp1NN1/4bn1B/K1p3r1/2p2kr1/Q2Pn3/4B2P/8 w - - 0 1)

Petite, Efren

Chess, 1954

4R3/2pp1NN1/4bn1B/K1p3r1/2p2kr1/Q2Pn3/4B2P/8

#2

9 + 10

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Rh4
      • 2.Bxg5#
  • Keys
    • 1.Qxc5!
      • threat
        • 2.Qe5#
      • 1...Bd5
        • 2.Qxe3#
      • 1...Sed5
        • 2.Qf2#
      • 1...Sfd5
        • 2.Qd4#
      • 1...d5
        • 2.Qxc7#
      • 1...d6
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(d);N_GUARD::B(F),XR(f)
  • Actual
    • Q(C);P_SPINQ(C),XP(e)
    • Threat
      • QAB1(C)
    • Vars
      • B(g);N_PINQ(C)::QAB1(C),XS(a)
      • S(a);N_PINQ(C)::QAR2(C)
      • S(h);N_PINQ(C)::QAR2(C)
      • P(j);N_PINQ(C)::QAB(C),XP(i)
      • P(j);N_GUARD::S(H),XB(g)
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