MESON Chess Problem Database

Problem Display
PID: 105113 (2b1R3/8/3pP1N1/1QpkP3/7R/b2r1P2/rn4NK/B1n5 w - - 0 1)

Michel, Francois

Match: France - Israel, 1954

2b1R3/8/3pP1N1/1QpkP3/7R/b2r1P2/rn4NK/B1n5

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Se3#
    • 1...Re3
      • 2.Sxe3#
    • 1...Rd4
      • 2.Se3#
    • 1...Bxe6
      • 2.Qb7#
    • 1...Bb7
      • 2.Qxb7#
    • 1...Sd1
      • 2.Sf4#
    • 1...Sa4
      • 2.Sf4#
    • 1...Sc4
      • 2.Sf4#
  • Tries
    • 1.Rd4+?
      • 1...Rxd4
        • 2.Se3#
      • 1...Kxd4!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qxd6#
      • 1...dxe5
        • 2.Se7#
      • 1...Rd4
        • 2.Se3#
      • 1...Sc4
        • 2.Sf4#
      • 1...c4
        • 2.S2f4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(e);N_GUARD::S(B)
    • R(e);N_GUARD::S(B),XR(e)
    • B(i);N_GUARD,XP(H)::QAB(F)
    • B(i);N_GUARD::QAB(F),XB(i)
    • S(c);P_PINS(B)::S(I)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • R(e);SBLOCK,XR(E)::S(B)
      • Refutation
        • K(g);N_SPINP(f),P-FLIGHT,P_SPINS(c),XR(E)
  • Actual
    • Q(F);N_PINP(f)
    • Threat
      • QAR1(F),XP(h)
    • Vars
      • P(h);SBLOCK,XP(G)::S(I)
      • R(e);N_GUARD::S(B)
      • S(c);P_PINS(B),SBLOCK::S(I)
      • P(f);SBLOCK::S(B)
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