MESON Chess Problem Database

Problem Display
PID: 11953 (6K1/8/5pkp/3P2pR/2p2B2/1pP1P3/1P3N2/2RQ4 w - - 0 1)

Stosic, Miroslav

4th Prize, Shakhmaty v SSSR, 1973

6K1/8/5pkp/3P2pR/2p2B2/1pP1P3/1P3N2/2RQ4

#2

10 + 6

3753 FIDE Album (1971-1973) 1978
5398 My Chess Compositions 2003
56 The Problemist 2009
56 The Problemist 2011

SOLUTION

  • SOUND
  • Sets
    • 1...gxf4
      • 2.Qg4#
    • 1...g4
      • 2.Qxg4#
  • Tries
    • 1.Rxh6+?
      • 1...Kf5
        • 2.Qg4#
      • 1...Kxh6!
    • 1.Qf3?
      • 1...Kf5
        • 2.Qe4#
      • 1...gxf4
        • 2.Rg1#
        • 2.Qg4#
      • 1...g4
        • 2.Qxg4#
      • 1...f5!
    • 1.Qh1?
      • 1...Kf5
        • 2.Qe4#
      • 1...gxf4
        • 2.Rg1#
      • 1...f5
        • 2.Rxh6#
      • 1...g4!
    • 1.e4?
      • 1...gxf4
        • 2.Qg4#
      • 1...g4
        • 2.Rxh6#
        • 2.Qxg4#
      • 1...f5!
  • Keys
    • 1.Ra1!
      • 1...Kf5
        • 2.Qb1#
      • 1...gxf4
        • 2.Qg4#
      • 1...f5
        • 2.Ra6#
      • 1...g4
        • 2.Qxg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB,XB(G)::QAR2(B)
    • P(c);OGATEB::QAR2(B),XP(c)
  • Tries
    • Try
      • R(I);CHECK,XP(f)
      • Vars
        • K(e);S_FLIGHT::QAB1(B)
      • Refutation
        • K(e);P-FLIGHT,P_SPINP(c),XR(I)
    • Try
      • Q(B);
      • Vars
        • K(e);P_SPINP(c),S_FLIGHT::QAB1(B)
        • P(c);OGATEB::QAR2(B),XP(c)
      • Refutation
        • P(d);
    • Try
      • Q(B);
      • Vars
        • K(e);P_SPINP(c),S_FLIGHT::QAB1(B)
        • P(c);OGATEB,XB(G)::R(A)
        • P(d);SBLOCK::R1(I),XP(f)
      • Refutation
        • P(c);
    • Try
      • P(F);
      • Vars
        • P(c);OGATEB,XB(G)::QAR2(B)
      • Refutation
        • P(d);
  • Actual
    • R(A);
    • Vars
      • K(e);P_SPINP(c),S_FLIGHT::QAB(B)
      • P(c);OGATEB,XB(G)::QAR2(B)
      • P(d);OGATEB,SBLOCK::R(A)
      • P(c);OGATEB::QAR2(B),XP(c)
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