MESON Chess Problem Database

Problem Display
PID: 74151 (2r2b2/1RPp4/P1k5/8/3Q2p1/3K4/4B3/8 w - - 0 1)

Buchwald, Julius

Falkirk Herald, 1940

2r2b2/1RPp4/P1k5/8/3Q2p1/3K4/4B3/8

#2

6 + 5

5759 Selected Compositions of Julius Buchwald 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc7
      • 2.Rb6#
    • 1...Rb8
      • 2.cxb8S#
    • 1...Rd8
      • 2.cxd8S#
  • Tries
    • 1.Kc4?
      • threat
        • 2.Qb6#
        • 2.Qd5#
      • 1...d5+
        • 2.Qxd5#
      • 1...Bc5
        • 2.Qxc5#
        • 2.Qd5#
      • 1...d6!
    • 1.Ke4?
      • threat
        • 2.Bb5#
        • 2.Qb6#
        • 2.Qd5#
      • 1...d5+
        • 2.Qxd5#
      • 1...d6
        • 2.Bb5#
      • 1...Bc5
        • 2.Bb5#
        • 2.Qd5#
      • 1...Re8+!
    • 1.Bf3+?
      • 1...d5
        • 2.Qxd5#
      • 1...gxf3!
    • 1.Qxd7+?
      • 1...Kc5
        • 2.Rb5#
      • 1...Kxd7!
  • Keys
    • 1.Bxg4!
      • threat
        • 2.Bxd7#
      • 1...Rxc7
        • 2.Rb6#
      • 1...d5
        • 2.Qb6#
      • 1...Rd8
        • 2.cxd8S#
      • 1...Bd6
        • 2.Bf3#
      • 1...d6
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(d);SBLOCK,XP(F)::R1(E)
    • R(d);OGATE::PXR(d)=S
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(c);CHECK::QAB1(C),XP(c)
      • Refutation
        • P(c);
    • Try
      • K(B);S_FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • P(c);CHECK::QAB1(C),XP(c)
        • P(c);::B(A)
      • Refutation
        • R(d);CHECK
    • Try
      • B(A);CHECK
      • Vars
        • P(c);P_SPINP(c)::QAB1(C),XP(c)
      • Refutation
        • P(a);XB(A)
    • Try
      • Q(C);CHECK,XP(c)
      • Vars
        • K(b);P-FLIGHT::R1(E)
      • Refutation
        • K(b);S_FLIGHT,XQ(C)
  • Actual
    • B(A);XP(a)
    • Threat
      • B(A),XP(c)
    • Vars
      • R(d);SBLOCK,XP(F)::R1(E)
      • P(c);SBLOCK::QAR1(C)
      • R(d);OGATE::PXR(d)=S
      • B(e);S_CUTP(c)::B(A)
      • P(c);SBLOCK,S_CUTB(e)::QAR2(C)
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