MESON Chess Problem Database

Problem Display
PID: 248167 (3Rb2B/1p1P1p2/5rr1/NPP1n3/1P1k2n1/2Np4/8/1KQ1b2B w - - 0 1)

Piatesi, Antonio

10th HM., White MT (B), 1952-1953

3Rb2B/1p1P1p2/5rr1/NPP1n3/1P1k2n1/2Np4/8/1KQ1b2B

#2

11 + 10

14867 BCPS Library 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.dxe8Q#
      • 2.dxe8R#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Sb3#
      • 1...Sxd7
        • 2.Qf4#
      • 1...Rf3
        • 2.Qc4#
      • 1...Sc4
        • 2.Qf4#
      • 1...Sc6
        • 2.Qf4#
      • 1...d2
        • 2.Qc3#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Sf3!
    • 1.dxe8Q+?
      • 1...Sd7
        • 2.Rxd7#
        • 2.Qe4#
      • 1...Rd6!
    • 1.dxe8R+?
      • 1...Sd7
        • 2.Rxd7#
        • 2.Re4#
      • 1...Rd6!
  • Keys
    • 1.Sd1!
      • threat
        • 2.Sb3#
      • 1...Sxd7
        • 2.Qf4#
      • 1...Rf3
        • 2.Qc4#
      • 1...Sf3
        • 2.dxe8Q#
        • 2.dxe8R#
      • 1...Sc4
        • 2.Qf4#
      • 1...Sc6
        • 2.Qf4#
      • 1...d2
        • 2.Qc3#
      • 1...Bc3
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD,P_SPINR(f)::PXB(j)=Q
  • Tries
    • Try
      • S(D);
      • Threat
        • S(F)
      • Vars
        • S(e);P_SPINR(f),XP(I)::QAR2(B)
        • R(f);P_SPINS(e)::QAR1(B)
        • S(e);P_SPINR(f)::QAR2(B)
        • P(b);S_CUTB(a)::QAB1(B)
        • B(a);N_GUARD::QAB1(B),XB(a)
      • Refutation
        • S(e);P_SPINR(f)
    • Try
      • P(I);CHECK,XB(j)
      • Refutation
        • R(f);P_SPINR(f),P_SPINS(e)
    • Try
      • P(I);CHECK,XB(j)
      • Refutation
        • R(f);P_SPINR(f),P_SPINS(e)
  • Actual
    • S(D);
    • Threat
      • S(F)
    • Vars
      • S(e);P_SPINR(f),P_SPINS(e),XP(I)::QAR2(B)
      • R(f);P_SPINS(e)::QAR1(B)
      • S(e);N_GUARD,P_SPINR(f)::PXB(j)=Q
      • S(e);P_SPINR(f)::QAR2(B)
      • P(b);S_CUTB(a)::QAB1(B)
      • B(a);N_GUARD::QAB1(B),XB(a)
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