MESON Chess Problem Database

Problem Display
PID: 168929 (2n4n/3B1p1b/K1RN1B2/2bk1N2/2p3p1/5p2/3P4/7Q w - - 0 1)

Vasilenko, Anatoly Grigorovich

Zamanov, Vidadi

4th Comm., SuperProblem, 2015

2n4n/3B1p1b/K1RN1B2/2bk1N2/2p3p1/5p2/3P4/7Q

#2

8 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Se3#
    • 1...Be3
      • 2.Sxe3#
    • 1...Bb4
      • 2.Se3#
    • 1...Sb6
      • 2.Se7#
    • 1...Sa7
      • 2.Se7#
    • 1...Se7
      • 2.Sxe7#
    • 1...g3
      • 2.Qxf3#
  • Tries
    • 1.Qa1?
      • threat
        • 2.Qe5#
      • 1...Bxd6
        • 2.Qd4#
      • 1...Bd4
        • 2.Qxd4#
      • 1...c3
        • 2.Qa2#
      • 1...Sg6!
    • 1.Qe1?
      • threat
        • 2.Qe4#
        • 2.Qe5#
      • 1...Bxf5
        • 2.Qe5#
      • 1...Sxd6
        • 2.Se7#
        • 2.Qe5#
      • 1...Be3
        • 2.Sxe3#
      • 1...Bd4
        • 2.Qe4#
      • 1...Sg6
        • 2.Qe4#
      • 1...Bxd6!
    • 1.Qf1?
      • threat
        • 2.Qxc4#
      • 1...Sb6
        • 2.Se7#
      • 1...c3
        • 2.Qc4#
      • 1...Sxd6!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qe4#
      • 1...Bxd6
        • 2.Se3#
      • 1...Bxf5
        • 2.Qxf5#
      • 1...Sxd6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • B(d);N_GUARD::S(C)
    • B(d);N_GUARD::S(C),XB(d)
    • S(h);N_GUARD::S(C)
    • S(h);N_GUARD::S(C),XS(h)
    • P(c);N_GUARD::QAB(A),XP(a)
  • Tries
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • QAR1(A)
      • Vars
        • B(d);N_GUARD,XS(F)::QAR1(A)
        • B(d);N_GUARD::QAR1(A),XB(d)
        • P(b);OGATEB::QAB(A)
      • Refutation
        • S(i);
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(g);XS(C)::QAR1(A)
        • B(d);N_GUARD::S(C),XB(d)
        • B(d);::QAB1(A)
        • S(i);::QAB1(A)
      • Refutation
        • B(d);XS(F)
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • QAB1(A),XP(b)
      • Vars
        • S(h);N_GUARD::S(C)
        • P(b);::QAB1(A)
      • Refutation
        • S(h);XS(F)
  • Actual
    • Q(A);N_PINP(a)
    • Threat
      • QAB1(A)
    • Vars
      • B(d);N_GUARD,XS(F)::S(C)
      • B(g);OGATE,XS(C)::QAR2(A),XB(g)
      • S(h);N_GUARD,XS(F)::S(C)
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