MESON Chess Problem Database

Problem Display
PID: 197388 (1B6/2b5/2p1p3/R1n1n1RN/2r1k2p/1BPpp2P/2N3K1/3Q4 w - - 0 1)

Bouchez, Laurent

di Scala, Pascal

Phenix, 1992

1B6/2b5/2p1p3/R1n1n1RN/2r1k2p/1BPpp2P/2N3K1/3Q4

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qxd3#
    • 1...Bxa5
      • 2.Rxe5#
    • 1...Bb6
      • 2.Rxe5#
    • 1...Bd8
      • 2.Rxe5#
    • 1...Sf3
      • 2.Qxf3#
    • 1...Sg4
      • 2.Qf3#
    • 1...Sg6
      • 2.Qf3#
    • 1...Sd7
      • 2.Qf3#
    • 1...Sf7
      • 2.Qf3#
  • Tries
    • 1.Rg4+?
      • 1...Kd5
        • 2.Rd4#
      • 1...Kf5
        • 2.Sxe3#
      • 1...Sxg4!
    • 1.Rxe5+?
      • 1...Bxe5
        • 2.Qf3#
      • 1...Kxe5!
    • 1.Qg4+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Sxg4!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Sf6#
      • 1...Kd5
        • 2.Qxd3#
      • 1...Bd8
        • 2.Rxe5#
      • 1...Scd7
        • 2.Qf4#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sg4
        • 2.Qf3#
      • 1...Sed7
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • K(d);P_SPINP(a),P_SPINR(c),P_SPINS(f),S_FLIGHT::QAR2(A),XP(a)
    • B(j);N_GUARD,XR(G)::R1(H),XS(g)
    • B(j);N_GUARD::R1(H),XS(g)
    • S(g);N_GUARD::QAB1(A),XS(g)
    • S(g);N_GUARD::QAB1(A)
  • Tries
    • Try
      • R(H);CHECK
      • Vars
        • K(d);OGATE,P_SPINP(a),P_SPINR(c),P_SPINS(f),S_FLIGHT::R1(H)
        • K(d);S_FLIGHT::S(B),XP(b)
      • Refutation
        • S(g);XR(H)
    • Try
      • R(H);CHECK,XS(g)
      • Vars
        • B(j);XR(H)::QAB1(A)
      • Refutation
        • K(d);P-FLIGHT,P_SPINB(j),P_SPINS(f),XR(H)
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);OGATE,P_SPINR(c),P_SPINS(f),S_FLIGHT::QAR1(A)
      • Refutation
        • S(g);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • S(I)
    • Vars
      • K(d);P_SPINR(c),P_SPINS(f),S_FLIGHT::QAR2(A),XP(a)
      • B(j);N_GUARD::R1(H),XS(g)
      • S(f);::QAR1(A)
      • S(g);N_GUARD::QAB1(A),XS(g)
      • S(g);N_GUARD::QAB1(A)
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