MESON Chess Problem Database

Problem Display
PID: 269748 (QK5k/pp1NR2N/8/3P1p2/4p3/1qrb4/1Bn1pPR1/r7 w - - 0 1)

Chicco, Adriano

Tijdschrift vd NSB, 1932

QK5k/pp1NR2N/8/3P1p2/4p3/1qrb4/1Bn1pPR1/r7

#2

9 + 11

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Kxb7#
    • 1...Qa4
      • 2.Kxb7#
    • 1...Qa3
      • 2.Kxb7#
    • 1...Rb1
      • 2.Kxa7#
    • 1...Rc1
      • 2.Kxa7#
    • 1...Rd1
      • 2.Kxa7#
    • 1...Re1
      • 2.Kxa7#
    • 1...Rf1
      • 2.Kxa7#
    • 1...Rg1
      • 2.Kxa7#
    • 1...Rh1
      • 2.Kxa7#
    • 1...Bc4
      • 2.Kc7#
    • 1...Bb5
      • 2.Kxb7#
    • 1...Ba6
      • 2.Kxa7#
    • 1...Sa3
      • 2.Kxa7#
    • 1...Sb4
      • 2.Kxb7#
    • 1...a5
      • 2.Ka7#
    • 1...a6
      • 2.Ka7#
    • 1...b5
      • 2.Kb7#
    • 1...b6
      • 2.Kb7#
  • Tries
    • 1.Shf6?
      • threat
        • 2.Rh2#
        • 2.Rg8#
        • 2.Rh7#
        • 2.Re8#
      • 1...Qxd5
        • 2.Rh2#
        • 2.Rh7#
      • 1...Qa3
        • 2.Rh2#
        • 2.Rg8#
        • 2.Rh7#
      • 1...Qb4
        • 2.Rh2#
        • 2.Rg8#
        • 2.Rh7#
      • 1...Rg1
        • 2.Rh2#
        • 2.Rh7#
        • 2.Re8#
      • 1...Rh1
        • 2.Rg8#
        • 2.Re8#
      • 1...Bc4
        • 2.Kc7#
        • 2.Rg8#
        • 2.Rh7#
        • 2.Re8#
      • 1...Bb5
        • 2.Rg8#
        • 2.Rh7#
        • 2.Re8#
      • 1...Ba6
        • 2.Rg8#
        • 2.Rh7#
        • 2.Re8#
      • 1...Rc8+!
    • 1.Bxc3+?
      • 1...Sd4
        • 2.Kc7#
        • 2.Bxd4#
      • 1...Qxc3!
  • Keys
    • 1.Rh2!
      • threat
        • 2.Shf6#
      • 1...Kg8
        • 2.Shf6#
      • 1...Rh1
        • 2.Kxa7#
      • 1...Bc4
        • 2.Kc7#
      • 1...Bb5
        • 2.Kxb7#
      • 1...Ba6
        • 2.Kxa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 15
  • Sets
    • Q(d);::QAR(H)+K(I),XP(j)
    • R(a);::QAR(H)+K(I),XP(i)
    • B(f);::QAR(H)+K(I)
    • B(f);::QAR(H)+K(I),XP(j)
    • B(f);::QAR(H)+K(I),XP(i)
    • S(b);::QAR(H)+K(I),XP(i)
    • S(b);::QAR(H)+K(I),XP(j)
    • P(i);::QAR(H)+K(I)
    • P(j);::QAR(H)+K(I)
  • Tries
    • Try
      • S(G);N_PINR(e)
      • Threat
        • DUALS(4)
      • Refutation
        • R(e);CHECK
    • Try
      • B(A);CHECK,XR(e)
      • Refutation
        • Q(d);XB(A)
  • Actual
    • R(C);
    • Threat
      • R(C)+S(G)
    • Vars
      • K(k);N_SPINR(e),P-FLIGHT::S(G)
      • R(a);::QAR(H)+K(I),XP(i)
      • B(f);::QAR(H)+K(I)
      • B(f);::QAR(H)+K(I),XP(j)
      • B(f);::QAR(H)+K(I),XP(i)
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