MESON Chess Problem Database

Problem Display
PID: 133011 (K5B1/p7/r4p1R/r4kp1/3Bn1p1/2p2bp1/4N1N1/1Qb1qR2 w - - 0 1)

Mira-Kraft, Edwin

Heilbronner Stimme, 1999

K5B1/p7/r4p1R/r4kp1/3Bn1p1/2p2bp1/4N1N1/1Qb1qR2

#2

8 + 13

14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Qd2
      • 2.Sxg3#
    • 1...Qd1
      • 2.Sxg3#
    • 1...Qxf1
      • 2.Sxg3#
    • 1...Re6
      • 2.Bh7#
    • 1...Bb2
      • 2.Se3#
    • 1...Ba3
      • 2.Se3#
    • 1...Be3
      • 2.Sxe3#
  • Tries
    • 1.Rxf3+?
      • 1...Bf4
        • 2.Se3#
      • 1...gxf3!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Qh7#
      • 1...Sd2
        • 2.Se3#
      • 1...Sf2
        • 2.Sxg3#
      • 1...Sc5
        • 2.Qd5#
      • 1...Sd6
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • Q(b);N_GUARD::S(C),XP(e)
    • Q(b);N_GUARD,N_SPINB(d),XR(B)::S(C),XP(e)
    • R(k);SBLOCK::B(H)
    • B(a);N_GUARD::S(D)
    • B(a);N_GUARD::S(D),XB(a)
  • Tries
    • Try
      • R(B);CHECK,XB(d)
      • Vars
        • B(a);P_SPINB(a)::S(D)
      • Refutation
        • P(g);XR(B)
  • Actual
    • Q(A);N_PINS(f)
    • Threat
      • QAB(A)
    • Vars
      • S(f);P_PINQ(A),S_CUTB(a)::S(D)
      • S(f);N_GUARD,N_SPINB(d),P_PINQ(A),S_CUTQ(b)::S(C),XP(e)
      • S(f);P_PINQ(A),S_CUTR(h)::QAR2(A)
      • S(f);N_GUARD,P_PINQ(A),S_CUTR(k)::R1(F),XP(l)
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