MESON Chess Problem Database

Problem Display
PID: 223386 (8/8/2PPpP2/1P1rk3/4P3/1B2B3/5N1K/6Q1 w - - 0 1)

von Hoene, HH

The Nashville Union, 1885

8/8/2PPpP2/1P1rk3/4P3/1B2B3/5N1K/6Q1

#2

10 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd6
      • 2.Qg5#
  • Tries
    • 1.Qa1+?
      • 1...Rd4
        • 2.Qxd4#
      • 1...Kxd6!
  • Keys
    • 1.Qg8!
      • 1...Kxd6
        • 2.Qb8#
      • 1...Kxf6
        • 2.Sg4#
      • 1...Rxb5
        • 2.Qxe6#
      • 1...Rxd6
        • 2.Qg5#
      • 1...Rd1
        • 2.Qxe6#
      • 1...Rd2
        • 2.Qxe6#
      • 1...Rd3
        • 2.Qxe6#
      • 1...Rd4
        • 2.Qxe6#
      • 1...Rc5
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK,XP(I)::QAR2(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::QAB1(A),XR(a)
      • Refutation
        • K(b);S_FLIGHT,XP(I)
  • Actual
    • Q(A);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XP(I)::QAB(A)
      • K(b);S_FLIGHT,XP(J)::S(B)
      • R(a);XP(G)::QAR1(A),XP(c)
      • R(a);SBLOCK,XP(I)::QAR2(A)
      • R(a);::QAR1(A),XP(c)
      • R(a);P_PINS(B)::QAR1(A),XP(c)
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