MESON Chess Problem Database

Problem Display
PID: 84874 (b3B3/3Ppr2/3N4/6b1/Q4p1R/3pPkN1/r4p1P/2B2K2 w - - 0 1)

Petite, Efren

Arguelles JT, 1963

b3B3/3Ppr2/3N4/6b1/Q4p1R/3pPkN1/r4p1P/2B2K2

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qd1#
    • 1...Re2
      • 2.Qxa8#
    • 1...Ra3
      • 2.Qd1#
    • 1...Rf5
      • 2.Bh5#
    • 1...Rf6
      • 2.Bh5#
    • 1...Rg7
      • 2.Bh5#
    • 1...Rf8
      • 2.Bh5#
    • 1...Bf6
      • 2.Rxf4#
      • 2.Qxf4#
    • 1...Be4
      • 2.Qxe4#
    • 1...Bc6
      • 2.Qxc6#
    • 1...fxe3
      • 2.Qg4#
    • 1...fxg3
      • 2.Qg4#
  • Keys
    • 1.Sc4!
      • threat
        • 2.Se5#
      • 1...Rd2
        • 2.Qxa8#
      • 1...Rf5
        • 2.Bh5#
      • 1...Bf6
        • 2.Rxf4#
      • 1...d2
        • 2.Qd1#
      • 1...e5
        • 2.Sxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 10
  • Sets
    • R(a);N_GUARD,P_PINB(A)::QAB(F)
    • R(a);N_GUARD::QAB(F),XB(i)
    • R(a);N_GUARD::QAB(F)
    • R(h);OGATE::B(J)
    • B(i);N_GUARD::QAB1(F),XB(i)
    • B(i);N_GUARD::QAB(F),XB(i)
    • P(e);OGATE,XP(D)::QAB1(F)
    • P(e);OGATE,XS(E)::QAB1(F)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • R(a);N_GUARD::QAB(F),XB(i)
      • R(h);OGATE::B(J)
      • B(f);N_GUARD,S_CUTR(h)::R1(G),XP(e)
      • P(c);S_CUTR(a)::QAB(F)
      • P(g);::S(H),XP(g)
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Developed and maintained by Brian Stephenson.
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