MESON Chess Problem Database

Problem Display
PID: 54016 (q7/1b2PB2/1r4p1/Q1R3K1/1n1p4/3k3N/1p1pp1R1/4rnB1 w - - 0 1)

Marysko, Milos

Chess Life, 1956

q7/1b2PB2/1r4p1/Q1R3K1/1n1p4/3k3N/1p1pp1R1/4rnB1

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sf4#
    • 1...Se3
      • 2.Sf2#
    • 1...Sc6
      • 2.Bxg6#
  • Tries
    • 1.Bxg6+?
      • 1...Be4
        • 2.Sf4#
      • 1...Rxg6+!
    • 1.Qa3+?
      • 1...Ke4
        • 2.Sf2#
        • 2.Rg4#
      • 1...Qxa3!
  • Keys
    • 1.Rg4!
      • threat
        • 2.Rxd4#
      • 1...Qd8
        • 2.Qa3#
      • 1...Qh8
        • 2.Qa3#
      • 1...Rd6
        • 2.Qb5#
      • 1...Be4
        • 2.Sf4#
      • 1...Se3
        • 2.Sf2#
      • 1...Sc2
        • 2.Bc4#
      • 1...Sc6
        • 2.Bxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(k);SBLOCK::S(C)
    • S(b);SBLOCK::S(C)
    • S(g);S_CUTB(k),S_CUTR(i)::B(H),XP(j)
  • Tries
    • Try
      • B(H);CHECK,XP(j)
      • Vars
        • B(k);P_SPINB(k)::S(C)
      • Refutation
        • R(i);CHECK,XB(H)
    • Try
      • Q(D);CHECK
      • Refutation
        • Q(l);XQ(D)
  • Actual
    • R(B);
    • Threat
      • R1(B),XP(h)
    • Vars
      • Q(l);N_GUARD,P_PINP(G)::QAR(D)
      • Q(l);N_GUARD::QAR(D)
      • R(i);N_GUARD::QAB(D)
      • B(k);SBLOCK::S(C)
      • S(b);SBLOCK::S(C)
      • S(g);SBLOCK::B(H)
      • S(g);S_CUTB(k),S_CUTR(i)::B(H),XP(j)
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