MESON Chess Problem Database

Problem Display
PID: 269231 (3n1BB1/1P1Qpr2/2pN2p1/r2k1nR1/b1R1pP2/P7/8/2K5 w - - 0 1)

Chicco, Adriano

7th HM., Adeverul Literar si Artistic, 1935

3n1BB1/1P1Qpr2/2pN2p1/r2k1nR1/b1R1pP2/P7/8/2K5

#2

10 + 10

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Rc3?
      • threat
        • 2.Sb5#
        • 2.Sxf5#
        • 2.Sxf7#
        • 2.Sc8#
        • 2.Se8#
      • 1...Kd4
        • 2.Sb5#
      • 1...Sxb7
        • 2.Sxb7#
      • 1...exd6
        • 2.Qxd6#
      • 1...Rb5
        • 2.Sxb5#
        • 2.Sxf5#
        • 2.Sxf7#
        • 2.Sc8#
        • 2.Se8#
      • 1...Bb5
        • 2.Sxb5#
        • 2.Sxf5#
        • 2.Sxf7#
        • 2.Sc8#
        • 2.Se8#
      • 1...c5
        • 2.Sb5#
      • 1...e5
        • 2.Sxf5#
      • 1...e6
        • 2.Sxf7#
      • 1...e3!
    • 1.Rxf5+?
      • 1...e5
        • 2.Rxe5#
      • 1...gxf5!
    • 1.Qxf5+?
      • 1...Kxd6
        • 2.b8Q#
        • 2.b8B#
      • 1...e5
        • 2.Qxe5#
      • 1...gxf5!
    • 1.Qxe7?
      • threat
        • 2.Qxe4#
        • 2.Qe5#
      • 1...c5
        • 2.Qxe4#
      • 1...e3
        • 2.Qe4#
        • 2.Qe5#
      • 1...Bc2
        • 2.Qe5#
      • 1...Se6!
  • Keys
    • 1.Rb4!
      • threat
        • 2.Sxe4#
      • 1...Rc5+
        • 2.Sc4#
      • 1...Kc5
        • 2.Sxe4#
      • 1...Sxb7
        • 2.Sxb7#
      • 1...exd6
        • 2.Qxd6#
      • 1...e3
        • 2.Se4#
      • 1...c5
        • 2.Sb5#
      • 1...e5
        • 2.Sxf5#
      • 1...e6
        • 2.Sxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Threat
        • DUALS(5)
      • Vars
        • K(d);N_SPINR(i),N_SPINS(e),P-FLIGHT::QAR(H)+S(F),DCHECK
        • S(j);XP(G)::QAR(H)+S(F),XS(j)
        • P(h);OGATE,P_SPINP(h),XS(F)::QAR1(H),XP(h)
        • P(f);::QAR(H)+S(F)
        • P(h);N_SPINS(e)::QAR(H)+S(F),XS(e)
        • P(h);N_SPINR(i)::QAR(H)+S(F),XR(i)
      • Refutation
        • P(b);
    • Try
      • R(E);CHECK,XS(e)
      • Vars
        • P(h);P_SPINP(h)::R1(E),XP(h)
      • Refutation
        • P(g);XR(E)
    • Try
      • Q(H);CHECK,XS(e)
      • Vars
        • K(d);N_SPINR(i),P-FLIGHT,P_SPINP(h),S_CUTP(g),XS(F)::P=Q
        • P(h);P_SPINP(h)::QAR1(H),XP(h)
      • Refutation
        • P(g);P_SPINP(g),XQ(H)
    • Try
      • Q(H);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • P(f);::QAB1(H),XP(b)
        • B(a);::QAR1(H)
      • Refutation
        • S(j);N_SPINR(i)
  • Actual
    • R(C);
    • Threat
      • QAR(H)+S(F),XP(b)
    • Vars
      • R(c);CHECK,SBLOCK::QAR(H)+S(F)
      • K(d);N_SPINR(i),P-FLIGHT::S(F),XP(b)
      • S(j);XP(G)::QAR(H)+S(F),XS(j)
      • P(h);OGATE,P_SPINP(h),XS(F)::QAR1(H),XP(h)
      • P(b);::QAR(H)+S(F)
      • P(f);SBLOCK::QAR(H)+S(F)
      • P(h);N_SPINS(e)::QAR(H)+S(F),XS(e)
      • P(h);N_SPINR(i)::QAR(H)+S(F),XR(i)
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