MESON Chess Problem Database

Problem Display
PID: 96551 (1KN5/1nP3R1/NPk1r3/Pp2p3/2rpP3/5Q1b/1R3p2/5q2 w - - 0 1)

Mariz, Gabriel

Problemas, 1994

1KN5/1nP3R1/NPk1r3/Pp2p3/2rpP3/5Q1b/1R3p2/5q2

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sb4#
    • 1...Rd6
      • 2.Sa7#
    • 1...Sd6
      • 2.Sa7#
    • 1...Sd8
      • 2.cxd8S#
  • Tries
    • 1.Qf7?
      • threat
        • 2.Qd7#
      • 1...Re7
        • 2.Qd5#
      • 1...Rd6
        • 2.Sa7#
      • 1...Rf6
        • 2.Qd5#
      • 1...Rg6
        • 2.Qd5#
      • 1...Rh6
        • 2.Qd5#
      • 1...Re8
        • 2.Qd5#
      • 1...Sc5!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qxb5#
      • 1...b4
        • 2.Qa4#
      • 1...Rc1
        • 2.Qd5#
      • 1...Rc2
        • 2.Qd5#
      • 1...Rc3
        • 2.Qd5#
      • 1...Ra4
        • 2.Qd5#
      • 1...Rb4
        • 2.Qd5#
      • 1...Rc5
        • 2.Sb4#
      • 1...Sd6
        • 2.Sa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(d);N_GUARD,SBLOCK::S(E)
    • R(i);SBLOCK::S(J)
    • S(j);SBLOCK::S(J)
    • S(j);OGATE::PXS(j)=S
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • R(i);OGATE::QAB1(B)
        • R(i);SBLOCK::S(J)
        • R(i);OGATE,P_PINS(J)::QAB1(B)
      • Refutation
        • S(j);
  • Actual
    • Q(B);
    • Threat
      • QAB1(B),XP(f)
    • Vars
      • P(f);OGATEB::QAB(B)
      • R(d);OGATE::QAB1(B)
      • R(d);N_GUARD,SBLOCK::S(E)
      • S(j);SBLOCK::S(J)
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