MESON Chess Problem Database

Problem Display
PID: 175509 (k6r/1p2p1p1/1P2K1P1/3QB3/8/2R5/8/r7 w - - 0 1)

Lamouroux, D

Philadelphia Times, 1899

k6r/1p2p1p1/1P2K1P1/3QB3/8/2R5/8/r7

#2

6 + 6

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Ra3#
      • 2.Qa2#
      • 2.Qa5#
    • 1...Rc1
      • 2.Ra3#
      • 2.Qa2#
      • 2.Qa5#
    • 1...Rd1
      • 2.Ra3#
      • 2.Qa2#
      • 2.Qa5#
    • 1...Re1
      • 2.Ra3#
      • 2.Qa2#
      • 2.Qa5#
    • 1...Rf1
      • 2.Ra3#
      • 2.Qa2#
      • 2.Qa5#
    • 1...Rg1
      • 2.Ra3#
      • 2.Qa2#
      • 2.Qa5#
    • 1...Rah1
      • 2.Ra3#
      • 2.Qa2#
      • 2.Qa5#
    • 1...Ra2
      • 2.Qxa2#
    • 1...Ra3
      • 2.Rxa3#
    • 1...Ra5
      • 2.Qxa5#
    • 1...Rhh1
      • 2.Rc8#
      • 2.Qd8#
    • 1...Rh2
      • 2.Rc8#
      • 2.Qd8#
    • 1...Rh3
      • 2.Rc8#
      • 2.Qd8#
    • 1...Rh4
      • 2.Rc8#
      • 2.Qd8#
    • 1...Rh5
      • 2.Rc8#
      • 2.Qd8#
    • 1...Rh6
      • 2.Rc8#
      • 2.Qd8#
    • 1...Rh7
      • 2.Rc8#
      • 2.Qd8#
    • 1...Rc8
      • 2.Rxc8#
    • 1...Rd8
      • 2.Qxd8#
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qxa1#
        • 2.Qxh8#
      • 1...Raxh1
        • 2.Ra3#
      • 1...Rhxh1
        • 2.Rc8#
      • 1...Ra4
        • 2.Qxh8#
      • 1...Rb1
        • 2.Ra3#
        • 2.Qxh8#
      • 1...Rc1
        • 2.Ra3#
        • 2.Qxh8#
      • 1...Rd1
        • 2.Ra3#
      • 1...Re1
        • 2.Ra3#
        • 2.Qxh8#
      • 1...Rf1
        • 2.Ra3#
      • 1...Rg1
        • 2.Ra3#
        • 2.Qxh8#
      • 1...Ra2
        • 2.Qxh8#
      • 1...Ra3
        • 2.Rxa3#
        • 2.Qxh8#
      • 1...Ra5
        • 2.Qxh8#
      • 1...Ra6
        • 2.Qxh8#
      • 1...Ra7
        • 2.Qxh8#
      • 1...Rh2
        • 2.Rc8#
      • 1...Rh3
        • 2.Rc8#
        • 2.Qxa1#
      • 1...Rh4
        • 2.Rc8#
      • 1...Rh5
        • 2.Rc8#
        • 2.Qxa1#
      • 1...Rh6
        • 2.Rc8#
        • 2.Qxa1#
      • 1...Rh7
        • 2.Rc8#
        • 2.Qxa1#
      • 1...Rb8
        • 2.Qxa1#
      • 1...Rc8
        • 2.Rxc8#
        • 2.Qxa1#
      • 1...Rd8
        • 2.Qxa1#
      • 1...Re8
        • 2.Qxa1#
      • 1...Rf8
        • 2.Qxa1#
      • 1...Rg8
        • 2.Qxa1#

Anticipated by 75098(1874)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 13
    • REMOVED MATES = 2
  • Sets
    • R(a);N_GUARD::QAR(B),XR(a)
    • R(a);N_GUARD::R(A),XR(a)
    • R(f);N_GUARD::R(A),XR(f)
    • R(f);N_GUARD::QAR(B),XR(f)
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • R(a);N_GUARD,N_SPINP(b),XQ(B)::R(A)
      • R(f);N_GUARD,N_SPINP(b),XQ(B)::R(A)
      • R(a);::QAB1(B),XR(f)
      • R(a);N_GUARD::R(A)
      • R(a);P_PINP(D)::QAB1(B),XR(f)
      • R(f);N_GUARD::R(A)
      • R(f);::QAB(B),XR(a)
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