MESON Chess Problem Database

Problem Display
PID: 7007 (8/8/7b/1B6/1Q2Pn1B/3Rrp1p/1pR2N1P/q1n1rk1K w - - 0 1)

Feldmann, Tibor (aka Florian, Tibor)

9th Prize, Munkassakk TT, 1935

8/8/7b/1B6/1Q2Pn1B/3Rrp1p/1pR2N1P/q1n1rk1K

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Rxd1#
    • 1...R1e2
      • 2.Rd1#
  • Tries
    • 1.Sd1?
      • threat
        • 2.Rf2#
      • 1...R3e2
        • 2.Rxf3#
      • 1...Sce2
        • 2.Sxe3#
        • 2.Qxe1#
      • 1...Sfe2
        • 2.Qxe1#
      • 1...f2
        • 2.Rxf2#
      • 1...R1e2!
    • 1.Qxe1+?
      • 1...Kxe1
        • 2.Rd1#
      • 1...Rxe1!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Rf2#
      • 1...R1e2
        • 2.Rd1#
      • 1...R3e2
        • 2.Rxf3#
      • 1...Sce2
        • 2.Sxe3#
      • 1...Sfe2
        • 2.Qxe1#
      • 1...f2
        • 2.Rxf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(c);::B(I)+R(E),DCHECK,XR(c)
    • R(c);S_CUTR(f),S_CUTR(f),S_CUTS(b),S_CUTS(b),S_CUTS(i),S_CUTS(i)::R(E)
  • Tries
    • Try
      • S(C);
      • Threat
        • R1(B)
      • Vars
        • R(f);OGATE::R(E),XP(g)
        • S(i);S_CUTR(f)::QAR1(F),XR(c)
        • P(g);::R1(B),XP(g)
      • Refutation
        • R(c);
    • Try
      • Q(F);CHECK,XR(c)
      • Vars
        • K(d);P-FLIGHT,XQ(F)::R1(E)
      • Refutation
        • R(f);XQ(F)
  • Actual
    • S(C);
    • Threat
      • R1(B)
    • Vars
      • R(c);S_CUTR(f),S_CUTR(f),S_CUTS(b),S_CUTS(b),S_CUTS(i),S_CUTS(i)::R(E)
      • R(f);OGATE::R(E),XP(g)
      • S(b);S_CUTR(c)::S(C),XR(f)
      • S(i);S_CUTR(f)::QAR1(F),XR(c)
      • P(g);::R1(B),XP(g)
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