MESON Chess Problem Database

Problem Display
PID: 179219 (8/4K3/p3pp2/3pk1pb/6PN/1p4P1/n1nQ2B1/2B5 w - - 0 1)

Armeni, Alberto

Phenix, 2013

8/4K3/p3pp2/3pk1pb/6PN/1p4P1/n1nQ2B1/2B5

#2

7 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bg6
      • 2.Sxg6#
    • 1...Sa1
      • 2.Qe3#
    • 1...Se1
      • 2.Qe3#
    • 1...Sa3
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sb4
      • 2.Qe3#
    • 1...Sd4
      • 2.Qe3#
    • 1...d4
      • 2.Qa5#
    • 1...gxh4
      • 2.Qf4#
  • Tries
    • 1.Bb2+?
      • 1...Sd4
        • 2.Bxd4#
        • 2.Qe1#
        • 2.Qe3#
        • 2.Qe2#
        • 2.Qxd4#
      • 1...d4
        • 2.Qa5#
      • 1...Sc3!
    • 1.Ba3?
      • threat
        • 2.Bd6#
      • 1...Sxa3
        • 2.Qe3#
      • 1...Scb4
        • 2.Qe3#
      • 1...Sab4!
    • 1.Qc3+?
      • 1...Sd4
        • 2.Qe3#
        • 2.Qc7#
      • 1...d4
        • 2.Qa5#
        • 2.Qc5#
        • 2.Qc7#
      • 1...Sxc3!
    • 1.Qe2+?
      • 1...Se3
        • 2.Qxe3#
      • 1...Kd4!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Sf3#
      • 1...Bxg4
        • 2.Sg6#
      • 1...gxh4
        • 2.Bf4#
      • 1...Se1
        • 2.Qe3#
      • 1...Sd4
        • 2.Qe3#
      • 1...d4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(g);N_GUARD::S(F),XB(g)
    • S(b);N_GUARD::QAR2(B)
    • S(b);N_GUARD::QAR2(B),XS(b)
    • P(d);OGATEB,SBLOCK::QAR(B)
    • P(f);N_GUARD,XS(F)::QAB1(B)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • P(d);P_SPINP(d),S_CUTS(a),S_CUTS(b)::QAR(B)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • S(b);N_GUARD,XB(A)::QAR2(B)
        • S(b);N_GUARD::QAR2(B)
      • Refutation
        • S(a);
    • Try
      • Q(B);CHECK
      • Refutation
        • S(a);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAR2(B),XS(b)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • Q(B);
    • Threat
      • S(F)
    • Vars
      • B(g);N_GUARD,XP(E)::S(F)
      • P(f);N_GUARD,XS(F)::B(A)
      • S(b);N_GUARD::QAR2(B)
      • P(d);N_GUARD::QAR1(B)
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