MESON Chess Problem Database

Problem Display
PID: 256923 (2q1n1nK/7b/pr6/3Q4/1k2pN1R/1pr1p3/3P4/R2BB3 w - - 0 1)

Kovacevic, Marjan

The Macedonian Problemist, 2021

2q1n1nK/7b/pr6/3Q4/1k2pN1R/1pr1p3/3P4/R2BB3

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.dxc3#
    • 1...Qg4
      • 2.dxc3#
    • 1...Qf5
      • 2.dxc3#
    • 1...Qe6
      • 2.dxc3#
    • 1...Qb7
      • 2.dxc3#
    • 1...Qd7
      • 2.dxc3#
    • 1...Qc4
      • 2.Qa5#
    • 1...Qa8
      • 2.dxc3#
    • 1...Qb8
      • 2.dxc3#
    • 1...Qd8
      • 2.dxc3#
    • 1...Rc1
      • 2.Sd3#
    • 1...Rc2
      • 2.Sd3#
    • 1...Rd3
      • 2.Sxd3#
    • 1...Rc4
      • 2.Qa5#
    • 1...Rc5
      • 2.Qxb3#
    • 1...Rcc6
      • 2.Sd3#
    • 1...Rc7
      • 2.Sd3#
    • 1...Sc7
      • 2.dxc3#
    • 1...b2
      • 2.Ra4#
  • Tries
    • 1.dxe3?
      • threat
        • 2.Sd3#
      • 1...Qc5
        • 2.Qxb3#
      • 1...Qc4
        • 2.Qa5#
      • 1...Qg4!
    • 1.d3?
      • threat
        • 2.Qa5#
      • 1...exd3
        • 2.Sxd3#
      • 1...Qc5
        • 2.Qxb3#
      • 1...Qf5
        • 2.Qc4#
      • 1...a5
        • 2.Qxa5#
      • 1...Rb5!
  • Keys
    • 1.d4!
      • threat
        • 2.Qxb3#
      • 1...exd4 ep
        • 2.Sxd3#
      • 1...Qe6
        • 2.Qc5#
      • 1...Qc4
        • 2.Qa5#
      • 1...b2
        • 2.Ra4#
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 17
  • Sets
    • Q(i);N_GUARD::P(D),XR(b)
    • Q(i);SBLOCK::QAB1(G)
    • R(b);N_GUARD::S(E)
    • R(b);N_GUARD::S(E),XR(b)
    • R(b);SBLOCK::QAB1(G)
    • R(b);N_GUARD,SBLOCK::QAR1(G),XP(a)
    • S(j);S_CUTQ(i)::P(D),XR(b)
    • P(a);::R1(A)
  • Tries
    • Try
      • P(D);P_PINR(b),XP(c)
      • Threat
        • S(E)
      • Vars
        • Q(i);SBLOCK::QAR1(G),XP(a)
        • Q(i);SBLOCK::QAB1(G)
      • Refutation
        • Q(i);
    • Try
      • P(D);P_PINR(b)
      • Threat
        • QAB1(G)
      • Vars
        • P(e);XP(D)::R(F)+S(E),DCHECK,XP(e)
        • Q(i);SBLOCK::QAR1(G),XP(a)
        • Q(i);N_GUARD::QAR1(G)
        • P(f);::QAB1(G),XP(f)
      • Refutation
        • R(g);
  • Actual
    • P(D);P_PINR(b)
    • Threat
      • QAR1(G),XP(a)
    • Vars
      • P(e);EP,N_GUARD,XP(D)::R(F)+S(E),DCHECK,XP(e)
      • Q(i);N_GUARD::QAB1(G)
      • Q(i);SBLOCK::QAB1(G)
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