MESON Chess Problem Database

Problem Display
PID: 103581 (8/8/2p1R1P1/K4Q2/b1kq3R/1prN4/2rp4/6b1 w - - 0 1)

Ianovcic, Anatole Felix

Themes-64, 1971

8/8/2p1R1P1/K4Q2/b1kq3R/1prN4/2rp4/6b1

#2

6 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Sb2#
    • 1...Rb2
      • 2.Sxb2#
  • Tries
    • 1.Rxd4+?
      • 1...Kxd4
        • 2.Qe4#
      • 1...Bxd4!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Re3#
      • 1...Kxd3
        • 2.Qf1#
      • 1...Kd5
        • 2.Rf6#
      • 1...Qxh4
        • 2.Rd6#
      • 1...Rxd3
        • 2.Rxc6#
      • 1...Qe4
        • 2.Rd6#
      • 1...Qf4
        • 2.Rd6#
      • 1...Qg4
        • 2.Rd6#
      • 1...Be3
        • 2.Rxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 2
  • Sets
    • R(b);N_GUARD::S(A)
    • R(b);N_GUARD::S(A),XR(b)
  • Tries
    • Try
      • R(B);CHECK,XQ(h)
      • Vars
        • K(g);P-FLIGHT,XR(B)::QAR1(D)
      • Refutation
        • B(a);XR(B)
  • Actual
    • Q(D);
    • Threat
      • QAB(D)+R(E)
    • Vars
      • K(g);N_SPINQ(h),OGATEB,S_FLIGHT,XS(A)::QAB(D)
      • K(g);N_SPINQ(h),S_FLIGHT::QAB(D)+R(E)
      • Q(h);N_SPINQ(h),XR(B)::QAB(D)+R(E)
      • R(e);SBLOCK,XS(A)::QAB(D)+R(E),DCHECK,XP(i)
      • Q(h);::QAB(D)+R(E)
      • B(a);::QAB(D)+R(E),XB(a)
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