MESON Chess Problem Database

Problem Display
PID: 234036 (2K5/3N4/R2N3R/1Ppk3r/4b2p/b2p4/8/6Q1 w - - 0 1)

Piatesi, Antonio

Il Due Mosse, 1953

2K5/3N4/R2N3R/1Ppk3r/4b2p/b2p4/8/6Q1

#2

7 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sb6#
    • 1...Bc1
      • 2.Qxc5#
    • 1...Bb2
      • 2.Qxc5#
  • Tries
    • 1.Rxh5+?
      • 1...Ke6
        • 2.Re5#
      • 1...Bf5!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qxe4#
      • 1...Re5
        • 2.Sb6#
      • 1...Bh1
        • 2.Sb6#
        • 2.Sf6#
        • 2.Rxh5#
        • 2.Qxd3#
      • 1...Bg2
        • 2.Sb6#
        • 2.Sf6#
        • 2.Rxh5#
        • 2.Qxd3#
      • 1...Bf3
        • 2.Sb6#
        • 2.Sf6#
        • 2.Qxd3#
      • 1...Bf5
        • 2.Qe5#
      • 1...Bg6
        • 2.Sf6#
      • 1...Bh7
        • 2.Sb6#
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(g);SBLOCK::S(F)
    • B(a);N_GUARD::QAR1(A),XP(e)
  • Tries
    • Try
      • R(E);CHECK,XR(g)
      • Vars
        • K(f);S_FLIGHT::R1(E)
      • Refutation
        • B(c);P_PINS(F),P_SPINB(c)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A),XB(c)
    • Vars
      • R(g);SBLOCK::S(F)
      • B(c);OGATE,P_PINS(F)::QAR1(A)
      • B(c);::S(F)
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