MESON Chess Problem Database

Problem Display
PID: 125384 (K4B2/3p4/2R5/kpr1p3/pbPQp2R/8/8/5B1b w - - 0 1)

Bussetta, Arturo

Franco, Francesco

5th HM., Scacco!, 1993

K4B2/3p4/2R5/kpr1p3/pbPQp2R/8/8/5B1b

#2

7 + 9

4901 Best Problems 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Qb6#
      • 2.Qa7#
    • 1...Rd5
      • 2.Qb6#
      • 2.Qa7#
  • Tries
    • 1.Qxc5?
      • threat
        • 2.Qxb4#
        • 2.Qb6#
        • 2.Qa7#
        • 2.Qxb5#
      • 1...dxc6
        • 2.Qa7#
      • 1...a3
        • 2.Qxb4#
        • 2.Qa7#
        • 2.Qxb5#
      • 1...Be1
        • 2.Qb6#
        • 2.Qa7#
        • 2.Qxb5#
      • 1...Bd2
        • 2.Qb6#
        • 2.Qa7#
        • 2.Qxb5#
      • 1...Ba3
        • 2.Qb6#
        • 2.Qa7#
        • 2.Qxb5#
      • 1...Bc3
        • 2.Qb6#
        • 2.Qa7#
        • 2.Qxb5#
      • 1...d6
        • 2.Qb6#
        • 2.Qa7#
        • 2.Qxb5#
      • 1...Bxc5!
  • Keys
    • 1.cxb5!
      • threat
        • 2.Ra6#
      • 1...Rxb5
        • 2.Qa7#
      • 1...Rxc6
        • 2.Bxb4#
      • 1...dxc6
        • 2.Qd8#
      • 1...Rc4
        • 2.Qb6#
      • 1...e3
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);P_PINP(f),XR(g)
      • Threat
        • DUALS(4)
      • Vars
        • P(i);XR(E)::QAR2(C)
      • Refutation
        • B(c);N_SPINP(f),XQ(C)
  • Actual
    • P(B);XP(f)
    • Threat
      • R1(E)
    • Vars
      • R(g);OGATE,XP(B)::QAR2(C)
      • R(g);OGATE,XR(E)::B(G),XB(c)
      • P(i);OGATE,XR(E)::QAB(C)
      • R(g);OGATE::QAB1(C)
      • P(d);P_PINR(E)::QAB1(C),XB(c)
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