MESON Chess Problem Database

Problem Display
PID: 269184 (2R1B3/p1q5/Pp1p1N2/1nkr4/1n5R/p1bPr3/b1Q5/6BK w - - 0 1)

Chicco, Adriano

3rd Prize, Munkassakk, 1938

2R1B3/p1q5/Pp1p1N2/1nkr4/1n5R/p1bPr3/b1Q5/6BK

#2

9 + 12

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.Sd7#
    • 1...Bb1
      • 2.Rc4#
    • 1...Bc4
      • 2.Rxc4#
  • Tries
    • 1.Bxe3+?
      • 1...Sd4
        • 2.Se4#
      • 1...Rd4!
    • 1.Rxc7+?
      • 1...Sc6
        • 2.Sd7#
        • 2.Rxc6#
      • 1...Sxc7!
    • 1.Qxa2?
      • threat
        • 2.Rc4#
        • 2.Qc4#
      • 1...Sxa2
        • 2.Rc4#
      • 1...Rh5
        • 2.Qc4#
      • 1...Bd4
        • 2.Qc4#
      • 1...Sd4
        • 2.Qc4#
      • 1...Rd4!
    • 1.Qxc3+?
      • 1...Bc4
        • 2.Se4#
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...Sxc3!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qxb5#
      • 1...Qc6
        • 2.Sd7#
      • 1...Bc4
        • 2.Rxc4#
      • 1...Sc6
        • 2.Se4#
      • 1...Sd4
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(l);::S(G)
    • B(a);N_GUARD::R1(E)
    • B(a);N_GUARD,N_SPINB(c)::R1(E),XB(a)
  • Tries
    • Try
      • B(A);CHECK,XR(d)
      • Vars
        • S(f);P_SPINS(f)::S(G)
      • Refutation
        • R(h);P_SPINR(h)
    • Try
      • R(H);CHECK,XQ(l)
      • Refutation
        • S(f);XR(H)
    • Try
      • Q(C);N_PINB(c),XB(a)
      • Threat
        • DUALS(2)
      • Vars
        • S(e);XQ(C)::R1(E)
        • R(h);P_PINR(E)::QAR1(C)
        • B(c);N_SPINR(d)::QAR1(C)
        • S(f);N_SPINR(d)::QAR1(C)
      • Refutation
        • R(h);N_SPINR(d)
    • Try
      • Q(C);CHECK,XB(c)
      • Refutation
        • S(f);XQ(C)
  • Actual
    • Q(C);N_PINB(c)
    • Threat
      • QAR1(C),XS(f)
    • Vars
      • Q(l);::S(G)
      • B(a);N_GUARD::R1(E),XB(a)
      • S(e);N_SPINQ(l)::S(G)
      • S(f);N_SPINR(d)::S(G)
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