MESON Chess Problem Database

Problem Display
PID: 72282 (K4n1n/P3p1B1/4k3/1pP4p/3RBR2/4Q3/1r2rp2/5q2 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1953

K4n1n/P3p1B1/4k3/1pP4p/3RBR2/4Q3/1r2rp2/5q2

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Qxh3#
    • 1...Qa1
      • 2.Qh3#
    • 1...Qb1
      • 2.Qh3#
    • 1...Qc1
      • 2.Qh3#
    • 1...Qd1
      • 2.Qh3#
    • 1...Qe1
      • 2.Qh3#
    • 1...Ra2
      • 2.Qb3#
    • 1...Rbd2
      • 2.Qb3#
    • 1...Rb3
      • 2.Qxb3#
    • 1...Rc2
      • 2.Bh1#
      • 2.Bxc2#
      • 2.Bg2#
      • 2.Bd3#
      • 2.Bf3#
      • 2.Bc6#
      • 2.Bg6#
      • 2.Bb7#
      • 2.Bh7#
    • 1...Red2
      • 2.Bb1#
      • 2.Bh1#
      • 2.Bc2#
      • 2.Bg2#
      • 2.Bd3#
      • 2.Bf3#
      • 2.Bc6#
      • 2.Bg6#
      • 2.Bb7#
      • 2.Bh7#
    • 1...Sd7
      • 2.Bd5#
    • 1...Sf7
      • 2.Bf5#
  • Tries
    • 1.Rf6+?
      • 1...Ke5
        • 2.Rd5#
        • 2.Ra6#
        • 2.Rb6#
        • 2.Rc6#
        • 2.Rfd6#
        • 2.Rg6#
        • 2.Rh6#
      • 1...exf6!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qa6#
      • 1...Qa1
        • 2.Qh3#
      • 1...Ra2
        • 2.Qb3#
      • 1...Sd7
        • 2.Bd5#
      • 1...Sf7
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • Q(a);N_GUARD::QAB(A),XQ(a)
    • Q(a);N_GUARD,P_PINP(F)::QAB(A)
    • Q(a);N_GUARD::QAB(A)
    • R(b);N_GUARD,P_PINP(F)::QAB(A)
    • R(b);N_GUARD::QAB(A)
    • R(b);N_GUARD::QAB(A),XR(b)
    • S(i);SBLOCK::QAR(A)+B(C),DCHECK
    • S(j);SBLOCK::QAR(A)+B(C),DCHECK
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • P(h);XR(D)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • Q(a);N_GUARD::QAB(A)
      • R(b);N_GUARD::QAB(A)
      • S(i);SBLOCK::B(C)
      • S(j);SBLOCK::B(C)
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