MESON Chess Problem Database

Problem Display
PID: 9884 (4RQ1K/7p/2r5/BN2p3/4npN1/2q5/2Pk4/2bB1R2 w - - 0 1)

Savalle, Andre

1st Prize, Le Probleme TT, 1960-1961

4RQ1K/7p/2r5/BN2p3/4npN1/2q5/2Pk4/2bB1R2

#2

9 + 8

3174 The Two-move Chess Problem Tradition and Development 1966

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Bxc3#
  • Tries
    • 1.Rxe5?
      • threat
        • 2.Qxf4#
      • 1...Rf6
        • 2.Rd5#
      • 1...Sf6
        • 2.Re2#
      • 1...f3
        • 2.Qf4#
      • 1...Rc8!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Qxf4#
      • 1...Ke3
        • 2.Qxf4#
      • 1...Rf6
        • 2.Sc4#
      • 1...Sf6
        • 2.Sf3#
      • 1...f3
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(d);N_GUARD,S_CUTR(g)::B(E),XQ(c)
  • Tries
    • Try
      • R(G);P_SPINR(G),XP(f)
      • Threat
        • QAB(H),XP(e)
      • Vars
        • R(g);N_PINR(G)::R(G)
        • S(d);N_PINR(G)::R1(G)
        • P(e);::QAB(H)
      • Refutation
        • R(g);P_PINQ(H)
  • Actual
    • S(D);P_SPINS(D),XP(f)
    • Threat
      • QAB(H),XP(e)
    • Vars
      • K(b);N_SPINQ(c),S_FLIGHT::QAB1(H),XP(e)
      • R(g);N_PINS(D)::S(D)
      • S(d);N_PINS(D)::S(D)
      • P(e);::QAB(H)
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