MESON Chess Problem Database

Problem Display
PID: 222904 (q1n1B3/p4p2/Pp1P1P2/3k4/3PR3/2P3Bp/b2nQ3/3R3K w - - 0 1)

Marysko, Milos

Suomen Shakki, 1976

q1n1B3/p4p2/Pp1P1P2/3k4/3PR3/2P3Bp/b2nQ3/3R3K

#2

11 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.Bxf7#
    • 1...Sb3
      • 2.c4#
    • 1...Sxe4
      • 2.Qxa2#
    • 1...Sxd6
      • 2.Re5#
  • Tries
    • 1.Re1?
      • threat
        • 2.Qb5#
      • 1...Sxe4
        • 2.Qxa2#
      • 1...Sxd6
        • 2.Re5#
      • 1...Qc6
        • 2.Bxf7#
      • 1...Bc4
        • 2.Qh5#
      • 1...Sb3
        • 2.c4#
      • 1...b5
        • 2.Qxb5#
      • 1...Sc4!
    • 1.Re7?
      • threat
        • 2.Qb5#
      • 1...Sxd6
        • 2.Re5#
      • 1...Qc6
        • 2.Bxf7#
      • 1...Bc4
        • 2.Qh5#
        • 2.Qe5#
      • 1...Sb3
        • 2.c4#
      • 1...Sc4
        • 2.Qf3#
        • 2.Qe4#
      • 1...Se4
        • 2.Qxa2#
      • 1...b5
        • 2.Qxb5#
      • 1...Sxe7!
  • Keys
    • 1.Re3!
      • threat
        • 2.Qb5#
      • 1...Sxd6
        • 2.Re5#
      • 1...Se4
        • 2.Qxa2#
      • 1...Qc6
        • 2.Bxf7#
      • 1...Bc4
        • 2.Qh5#
      • 1...Sb3
        • 2.c4#
      • 1...Sc4
        • 2.Qf3#
      • 1...b5
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(h);SBLOCK::B(K),XP(g)
    • S(b);N_GUARD,S_CUTB(a)::P(D)
    • S(b);OGATE,SBLOCK,XR(G)::QAB(C),XB(a)
    • S(i);SBLOCK,XP(I)::R1(G)
  • Tries
    • Try
      • R(A);
      • Threat
        • QAR2(C)
      • Vars
        • S(b);OGATE,XR(G)::QAB(C),XB(a)
        • S(i);SBLOCK,XP(I)::R1(G)
        • Q(h);SBLOCK::B(K),XP(g)
        • B(a);SBLOCK::QAR(C)
        • S(b);N_GUARD,S_CUTB(a)::P(D)
        • P(e);::QAR2(C),XP(e)
      • Refutation
        • S(b);
    • Try
      • R(G);
      • Threat
        • QAR2(C)
      • Vars
        • S(i);SBLOCK,XP(I)::R1(G)
        • Q(h);SBLOCK::B(K),XP(g)
        • S(b);N_GUARD,S_CUTB(a)::P(D)
        • S(b);OGATE::QAB(C),XB(a)
        • P(e);::QAR2(C),XP(e)
      • Refutation
        • S(i);XR(G)
  • Actual
    • R(G);
    • Threat
      • QAR2(C)
    • Vars
      • S(i);SBLOCK,XP(I)::R1(G)
      • S(b);OGATE::QAB(C),XB(a)
      • Q(h);SBLOCK::B(K),XP(g)
      • B(a);SBLOCK::QAR(C)
      • S(b);N_GUARD,S_CUTB(a)::P(D)
      • S(b);N_GUARD,SBLOCK::QAB(C)
      • P(e);::QAR2(C),XP(e)
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