MESON Chess Problem Database

Problem Display
PID: 22035 (q1r3B1/3P3K/pR3NQ1/P1krn2R/2p1p3/8/1B6/1b4b1 w - - 0 1)

Kovacs, Florian Janos

Magyar Sakkvilag, 1923

q1r3B1/3P3K/pR3NQ1/P1krn2R/2p1p3/8/1B6/1b4b1

#2

9 + 10

3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Ba3#
    • 1...Rxd7+
      • 2.Sxd7#
    • 1...Ba2
      • 2.Sxe4#
    • 1...Bd4
      • 2.Ba3#
    • 1...Sd3
      • 2.Sxe4#
    • 1...Sc6
      • 2.Rxd5#
    • 1...Sxd7
      • 2.Sxd7#
  • Tries
    • 1.Qxg1+?
      • 1...Rd4
        • 2.Ba3#
        • 2.Bxd4#
        • 2.Qxd4#
      • 1...e3+!
  • Keys
    • 1.Qxe4!
      • threat
        • 2.Ba3#
      • 1...Rxd7+
        • 2.Sxd7#
      • 1...Bxe4+
        • 2.Sxe4#
      • 1...Sc6
        • 2.Rxd5#
      • 1...Rd3
        • 2.Qxc4#
      • 1...Sd3
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(f);P_SPINS(g),SBLOCK::B(A)
    • R(f);CHECK,P_SPINS(g),XP(G)::S(E),XR(f)
    • B(a);N_GUARD::S(E),XP(d)
    • B(b);SBLOCK::B(A)
    • S(g);P_SPINR(f),S_CUTB(a)::S(E),XP(d)
    • S(g);OGATE,P_SPINR(f)::R1(C),XR(f)
    • S(g);P_SPINR(f),XP(G)::S(E),XS(g)
  • Tries
    • Try
      • Q(F);CHECK,XB(b)
      • Refutation
        • P(d);CHECK,P_SPINP(d)
  • Actual
    • Q(F);P_SPINQ(F),XP(d)
    • Threat
      • B(A)
    • Vars
      • R(f);CHECK,P_SPINS(g),XP(G)::S(E),XR(f)
      • B(a);CHECK,XQ(F)::S(E),XB(a)
      • S(g);OGATE,P_SPINR(f)::R1(C),XR(f)
      • R(f);N_PINQ(F),P_SPINS(g)::QAR1(F),XP(c)
      • S(g);N_PINQ(F),P_SPINR(f)::QAB(F)
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