MESON Chess Problem Database

Problem Display
PID: 246058 (3B1r2/5p1n/3p2P1/r1p5/2pN1k1P/2Q1R2K/2p2P2/2qb2R1 w - - 0 1)

Svitek, Miroslav

Problemist Ukraini, 2019

3B1r2/5p1n/3p2P1/r1p5/2pN1k1P/2Q1R2K/2p2P2/2qb2R1

#2

9 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe3+
      • 2.Qxe3#
    • 1...Bg4+
      • 2.Rxg4#
    • 1...Sg5+
      • 2.Bxg5#
    • 1...d5
      • 2.Bc7#
    • 1...f5
      • 2.Se6#
  • Tries
    • 1.Qd3?
      • threat
        • 2.Re4#
        • 2.Qe4#
        • 2.Qf5#
      • 1...Qxe3+
        • 2.Qxe3#
      • 1...Bg4+
        • 2.Rxg4#
      • 1...Sg5+
        • 2.Bxg5#
      • 1...cxd4
        • 2.Qe4#
      • 1...fxg6
        • 2.Se6#
        • 2.Re4#
        • 2.Qe4#
      • 1...Re8
        • 2.Qf5#
      • 1...Bf3
        • 2.Qf5#
      • 1...Sf6
        • 2.Qf5#
      • 1...d5
        • 2.Bc7#
        • 2.Qf5#
      • 1...f5
        • 2.Se6#
      • 1...cxd3!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Rf5#
      • 1...Qxe3+
        • 2.Qxe3#
      • 1...Bg4+
        • 2.Rxg4#
      • 1...Sxg5+
        • 2.Bxg5#
      • 1...cxd4
        • 2.Qxd4#
      • 1...fxg6
        • 2.Se6#
      • 1...f5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(a);CHECK,OGATE,XR(D)::QAB1(C),XQ(a)
    • B(b);CHECK,N_GUARD::R1(A),XB(b)
    • S(j);CHECK,N_GUARD::B(I),XS(j)
    • P(h);OGATEB::B(I)
    • P(i);N_GUARD,SBLOCK::S(F)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • Q(a);CHECK,OGATE,XR(D)::QAB1(C),XQ(a)
        • B(b);CHECK,N_GUARD::R1(A),XB(b)
        • S(j);CHECK,N_GUARD::B(I),XS(j)
        • P(g);XS(F)::QAR1(C)
        • R(k);::QAR1(C)
        • B(b);::QAR1(C)
        • S(j);::QAR1(C)
        • P(i);N_GUARD::S(F)
      • Refutation
        • P(d);XQ(C)
  • Actual
    • R(A);
    • Threat
      • R1(A)
    • Vars
      • Q(a);CHECK,OGATE,XR(D)::QAB1(C),XQ(a)
      • B(b);CHECK,N_GUARD::R1(A),XB(b)
      • S(j);CHECK,OGATE,XR(A)::B(I),XS(j)
      • P(g);OGATE,XS(F)::QAR2(C),XP(g)
      • P(i);N_GUARD,XP(H)::S(F)
      • P(i);N_GUARD::S(F)
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