MESON Chess Problem Database

Problem Display
PID: 85096 (3n3B/2nR1b2/6p1/3r1k2/r3NNp1/4R1K1/8/1Q6 w - - 0 1)

Makaronets, Leonid

Telescacco 92, 1999

3n3B/2nR1b2/6p1/3r1k2/r3NNp1/4R1K1/8/1Q6

#2

7 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sce6
      • 2.Rxd5#
    • 1...Sc6
      • 2.Rxf7#
    • 1...Sde6
      • 2.Rxf7#
    • 1...Sb7
      • 2.Rxf7#
    • 1...g5
      • 2.Sd6#
  • Keys
    • 1.Se6!
      • threat
        • 2.Sd6#
      • 1...Kxe6
        • 2.Sc5#
      • 1...Rxe4
        • 2.Qxe4#
      • 1...Bxe6
        • 2.Qf1#
      • 1...Scxe6
        • 2.Rxd5#
      • 1...Sdxe6
        • 2.Rxf7#
      • 1...Re5
        • 2.Sg7#
      • 1...Rd6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • S(f);N_GUARD,S_CUTB(g)::R(F),XR(c)
    • S(h);N_GUARD::R(F),XB(g)
    • P(e);SBLOCK::QAB(A)+S(D),DCHECK
  • Actual
    • S(E);
    • Threat
      • QAB(A)+S(D),DCHECK
    • Vars
      • K(d);S_FLIGHT,XS(E)::R(B)+S(D),DCHECK
      • R(a);OGATE,P_SPINR(a),XS(D)::QAB1(A),XR(a)
      • B(g);SBLOCK,XS(E)::QAR(A)
      • S(f);N_GUARD,SBLOCK,XS(E)::R(F),XR(c)
      • S(h);N_GUARD,SBLOCK,XS(E)::R(F),XB(g)
      • R(c);SBLOCK::S(E)
      • R(c);::QAB(A)+S(D),DCHECK,XR(c)
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