MESON Chess Problem Database

Problem Display
PID: 145126 (6B1/7p/1PP1P1nR/2pk1NK1/2N2P2/1QPb4/8/3R4 w - - 0 1)

Valle, Giovanni Batista

Source?, 0000

6B1/7p/1PP1P1nR/2pk1NK1/2N2P2/1QPb4/8/3R4

#2

12 + 5

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Sd2#
    • 1...Kxc6
      • 2.Sa5#
  • Tries
    • 1.Sce3+?
      • 1...Ke4
        • 2.Qd5#
      • 1...Kxc6!
    • 1.Sa5+?
      • 1...c4
        • 2.Qxc4#
      • 1...Ke4!
    • 1.Se5+?
      • 1...c4
        • 2.Qxc4#
      • 1...Ke4!
    • 1.Scd6+?
      • 1...c4
        • 2.Qxc4#
        • 2.Qb5#
      • 1...Kxc6!
    • 1.Rxd3+?
      • 1...Kxc6
        • 2.Sa5#
      • 1...Ke4!
    • 1.e7+?
      • 1...Ke4
        • 2.Sd2#
      • 1...Kxc6!
  • Keys
    • 1.Bxh7!
      • 1...Ke4
        • 2.Sd2#
      • 1...Kxc6
        • 2.Sa5#
      • 1...Kxe6
        • 2.Bg8#
      • 1...Sxf4
        • 2.Se7#
      • 1...Sh4
        • 2.Se7#
      • 1...Se5
        • 2.Se7#
      • 1...Se7
        • 2.Sxe7#
      • 1...Sf8
        • 2.Se7#
      • 1...Sh8
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINB(a),S_FLIGHT::S(D)
    • K(c);N_SPINB(a),S_FLIGHT,XP(I)::S(D)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(c);N_SPINB(a),S_FLIGHT::QAB1(B)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT,XP(I)
    • Try
      • S(D);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAB1(B),XP(b)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAB1(B),XP(b)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
    • Try
      • S(D);CHECK
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT,XP(I)
    • Try
      • R(A);CHECK,XB(a)
      • Vars
        • K(c);S_FLIGHT,XP(I)::S(D)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(J);CHECK
      • Vars
        • K(c);N_SPINB(a),S_FLIGHT::S(D)
      • Refutation
        • K(c);N_SPINB(a),P_SPINS(d),S_FLIGHT,XP(I)
  • Actual
    • B(L);XP(e)
    • Vars
      • K(c);N_SPINB(a),S_FLIGHT::S(D)
      • K(c);N_SPINB(a),S_FLIGHT,XP(I)::S(D)
      • K(c);N_SPINB(a),OGATEB,P_SPINS(d),S_FLIGHT,XP(J)::B(L)
      • S(d);N_GUARD,XP(E)::S(F)
      • S(d);N_GUARD::S(F)
      • S(d);N_GUARD::S(F),XS(d)
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