MESON Chess Problem Database

Problem Display
PID: 214657 (1Bb5/2pp4/p2knP2/N1Rp4/7Q/K7/8/8 w - - 0 1)

Dunnica, RF

The Sunny South, 1878

1Bb5/2pp4/p2knP2/N1Rp4/7Q/K7/8/8

#2

6 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qb4#
  • Tries
    • 1.Bxc7+?
      • 1...Kxc5
        • 2.Qb4#
      • 1...Sxc7!
    • 1.Qe4?
      • threat
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Kxc5
        • 2.Qb4#
      • 1...Sxc5
        • 2.Qe7#
      • 1...Sf4
        • 2.Qe7#
      • 1...Bb7
        • 2.Sxb7#
      • 1...d4
        • 2.Rd5#
        • 2.Qd5#
        • 2.Qe5#
      • 1...dxe4!
    • 1.Qf4+?
      • 1...Kxc5
        • 2.Qb4#
      • 1...Sxf4!
  • Keys
    • 1.Qe1!
      • 1...Kxc5
        • 2.Qb4#
      • 1...Sxc5
        • 2.Qe7#
      • 1...Bb7
        • 2.Sxb7#
      • 1...Sd4
        • 2.Qe7#
      • 1...Sf4
        • 2.Qe7#
      • 1...Sg5
        • 2.Qe7#
      • 1...Sg7
        • 2.Qe7#
      • 1...Sd8
        • 2.Qe7#
      • 1...Sf8
        • 2.Qe7#
      • 1...d4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(e),OGATEB,S_FLIGHT,XR(D)::QAB1(B)
  • Tries
    • Try
      • B(F);CHECK,XP(e)
      • Vars
        • K(c);S_FLIGHT,XR(D)::QAB1(B)
      • Refutation
        • S(d);XB(F)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);N_SPINP(e),OGATEB,S_FLIGHT,XR(D)::QAB1(B)
        • S(d);OGATE,SBLOCK,XR(D)::QAB1(B)
        • S(d);OGATE::QAB1(B)
        • B(g);N_GUARD::S(C),XB(g)
      • Refutation
        • P(a);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);N_SPINP(e),OGATEB,S_FLIGHT,XR(D)::QAB1(B)
      • Refutation
        • S(d);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(c);N_SPINP(e),OGATEB,S_FLIGHT,XR(D)::QAB1(B)
      • S(d);OGATE,SBLOCK,XR(D)::QAB1(B)
      • B(g);N_GUARD::S(C),XB(g)
      • S(d);OGATE::QAB1(B)
      • P(a);::QAB1(B)
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