MESON Chess Problem Database

Problem Display
PID: 261524 (3R3b/q1p2p1b/1r6/p5p1/1n2k3/1B2pNPQ/4P1n1/5K2 w - - 0 1)

Vollenweider, Odette (aka Baumgartner, Gabriel)

Neue Zurcher Zeitung, 1962

3R3b/q1p2p1b/1r6/p5p1/1n2k3/1B2pNPQ/4P1n1/5K2

#2

7 + 12

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Rxd4#
    • 1...Be5
      • 2.Sxg5#
    • 1...Bf6
      • 2.Qxh7#
    • 1...Se1
      • 2.Qg4#
    • 1...Sh4
      • 2.Qg4#
    • 1...Sa2
      • 2.Bc2#
      • 2.Bd5#
    • 1...Sc2
      • 2.Bxc2#
      • 2.Bd5#
    • 1...Sd3
      • 2.Bd5#
    • 1...Sd5
      • 2.Bc2#
      • 2.Bxd5#
    • 1...Sa6
      • 2.Bc2#
      • 2.Bd5#
    • 1...Sc6
      • 2.Bc2#
      • 2.Bd5#
    • 1...f6
      • 2.Rd4#
  • Tries
    • 1.Bc2+?
      • 1...Sd3
        • 2.Bxd3#
      • 1...Sxc2!
    • 1.Re8+?
      • 1...Be5
        • 2.Rxe5#
      • 1...Re6!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Sxg5#
      • 1...Sxd5
        • 2.Bc2#
      • 1...Rf6
        • 2.Re5#
      • 1...Rg6
        • 2.Qf5#
      • 1...Bf6
        • 2.Qxh7#
      • 1...g4
        • 2.Sg5#
      • 1...f6
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • B(l);N_GUARD::R1(G),XB(l)
    • B(l);SBLOCK::S(D),XP(f)
    • B(l);S_CUTP(j),S_CUTR(g)::QAB(F),XB(k)
    • S(a);N_GUARD::QAR2(F)
    • S(c);N_GUARD::B(C)
    • P(j);S_CUTB(l)::R1(G)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::B(C),XS(c)
      • Refutation
        • S(c);XB(C)
    • Try
      • R(G);CHECK
      • Vars
        • B(l);N_GUARD,P_SPINB(l)::R1(G),XB(l)
      • Refutation
        • R(g);P_SPINR(g)
  • Actual
    • R(G);
    • Threat
      • S(D),XP(f)
    • Vars
      • S(c);N_GUARD,SBLOCK,XR(G)::B(C)
      • R(g);P_PINS(D),S_CUTB(l)::R1(G)
      • R(g);S_CUTB(k)::QAB1(F)
      • B(l);S_CUTP(j),S_CUTR(g)::QAB(F),XB(k)
      • P(f);::S(D)
      • P(j);S_CUTB(l)::R1(G)
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