MESON Chess Problem Database

Problem Display
PID: 163910 (Qn5k/5B2/2p1p1K1/5pp1/R7/p1p5/1q5p/N6R w - - 0 1)

Placanico, Pietro L

Best Problems, 2014

Qn5k/5B2/2p1p1K1/5pp1/R7/p1p5/1q5p/N6R

#2

6 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxa1
      • 2.Rxh2#
      • 2.Qxb8#
    • 1...Qc1
      • 2.Rxh2#
      • 2.Qxb8#
    • 1...Qb1
      • 2.Rxh2#
    • 1...Qa2
      • 2.Qxb8#
    • 1...Qc2
      • 2.Qxb8#
    • 1...Qe2
      • 2.Qxb8#
    • 1...Qf2
      • 2.Qxb8#
    • 1...Qg2
      • 2.Qxb8#
    • 1...Qb3
      • 2.Rxh2#
    • 1...Qb5
      • 2.Rxh2#
    • 1...Qb6
      • 2.Rxh2#
    • 1...Qb7
      • 2.Rxh2#
    • 1...c2
      • 2.Rxh2#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Rxh2#
      • 1...Qxc2
        • 2.Qxb8#
      • 1...Qb4!
    • 1.Sb3?
      • threat
        • 2.Qxb8#
      • 1...Qxb3
        • 2.Rxh2#
      • 1...Qd2!
    • 1.Qa5?
      • threat
        • 2.Qd8#
        • 2.Qe5#
      • 1...Qd2
        • 2.Qe5#
      • 1...Qe2
        • 2.Qd8#
      • 1...Qb4
        • 2.Qe5#
      • 1...Qb5
        • 2.Rxh2#
        • 2.Qd8#
      • 1...Qb6
        • 2.Rxh2#
        • 2.Qe5#
      • 1...c2
        • 2.Rxh2#
        • 2.Qd8#
      • 1...c5
        • 2.Qd8#
      • 1...e5
        • 2.Qd8#
        • 2.Qxe5#
      • 1...Sd7!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Rd8#
      • 1...Qd2
        • 2.Qxb8#
      • 1...Qb4
        • 2.Rxh2#
      • 1...Qb6
        • 2.Rxh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • Q(a);N_GUARD::R(B),XP(b)
    • Q(a);N_GUARD::QAR(F),XS(i)
    • P(d);S_CUTQ(a)::R(B),XP(b)
  • Tries
    • Try
      • S(A);
      • Threat
        • R(B),XP(b)
      • Vars
        • Q(a);N_GUARD,XS(A)::QAR(F),XS(i)
      • Refutation
        • Q(a);
    • Try
      • S(A);
      • Threat
        • QAR(F),XS(i)
      • Vars
        • Q(a);N_GUARD,XS(A)::R(B),XP(b)
      • Refutation
        • Q(a);
    • Try
      • Q(F);N_PINS(i)
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);::QAB(F)
        • Q(a);::QAR(F)
        • P(g);::QAR(F)
      • Refutation
        • S(i);
  • Actual
    • R(C);
    • Threat
      • R(C)
    • Vars
      • Q(a);N_GUARD::QAR(F),XS(i)
      • Q(a);N_GUARD::R(B),XP(b)
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