MESON Chess Problem Database

Problem Display
PID: 118262 (2R5/1p4b1/1K6/3p1B2/1NbkpQ2/3p4/5P2/4B3 w - - 0 1)

Pirrone, Santi

Comm., Rio de Janeiro-400 JT (Boletim da UBP), 1965

2R5/1p4b1/1K6/3p1B2/1NbkpQ2/3p4/5P2/4B3

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Bc3#
    • 1...Bb3
      • 2.Bc3#
    • 1...Bb5
      • 2.Bc3#
    • 1...Ba6
      • 2.Bc3#
    • 1...Be5
      • 2.Qe3#
  • Tries
    • 1.Sxd3?
      • threat
        • 2.Qe3#
      • 1...Kxd3
        • 2.Qd2#
      • 1...Bxd3
        • 2.Bc3#
      • 1...Bh6!
    • 1.Rxc4+?
      • 1...dxc4
        • 2.Qd6#
        • 2.Qxe4#
      • 1...Kxc4!
    • 1.Qc1?
      • threat
        • 2.Bc3#
        • 2.Qb2#
        • 2.Qa1#
        • 2.Qc3#
      • 1...d2
        • 2.Qb2#
        • 2.Qa1#
      • 1...Ke5!
  • Keys
    • 1.Sxd5!
      • threat
        • 2.Qxe4#
      • 1...Kxd5
        • 2.Rd8#
      • 1...Bxd5
        • 2.Bc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • B(b);::B(A)
    • B(g);SBLOCK::QAB1(D)
  • Tries
    • Try
      • S(C);XP(a)
      • Threat
        • QAB1(D)
      • Vars
        • K(c);OGATEB,P-FLIGHT,XS(C)::QAR1(D)
        • B(b);SBLOCK,XS(C)::B(A)
      • Refutation
        • B(g);
    • Try
      • R(G);CHECK,XB(b)
      • Refutation
        • K(c);P-FLIGHT,XR(G)
    • Try
      • Q(D);N_PINP(d)
      • Threat
        • DUALS(4)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(C);XP(e)
    • Threat
      • QAR1(D),XP(d)
    • Vars
      • K(c);N_SPINP(d),OGATEB,P-FLIGHT,XS(C)::R(G)
      • B(b);SBLOCK,XS(C)::B(A)
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