MESON Chess Problem Database

Problem Display
PID: 2367 (4r3/2n1R3/B2Bn3/2P1r2N/4k2P/3R4/K1N1Pp2/1Q6 w - - 0 1)

Gleave, Walter

2nd Prize, Bristol Mercury, 1891

4r3/2n1R3/B2Bn3/2P1r2N/4k2P/3R4/K1N1Pp2/1Q6

#2

11 + 6

15 British Chess Magazine 1891
187 The Chess Bouquet 1897

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc5
      • 2.Sg3#
    • 1...Rd5
      • 2.Sg3#
    • 1...Rf5
      • 2.Sg3#
      • 2.Rd4#
      • 2.Qb4#
    • 1...Sf4
      • 2.Sg3#
  • Tries
    • 1.Sf6+?
      • 1...Kf4
        • 2.Rf3#
      • 1...Kf5!
    • 1.Re3+?
      • 1...Kd5
        • 2.Qb7#
      • 1...Kf5!
    • 1.Rd4+?
      • 1...Kf5
        • 2.Se3#
      • 1...Sxd4!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Rxe5#
      • 1...Kxd5
        • 2.Qb7#
      • 1...Kf5
        • 2.Se3#
      • 1...Rxd5
        • 2.Sg3#
      • 1...Rxh5
        • 2.Qh1#
      • 1...Sxd5
        • 2.Bd3#
      • 1...Rf5
        • 2.Rd4#
      • 1...Rg5
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(c);P_SPINS(d),XP(G)::S(H)
    • R(c);P_SPINS(d)::S(H)
    • S(d);P_SPINR(c),SBLOCK::S(H)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINR(c)::R1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(A)+S(C),DCHECK
      • Refutation
        • S(d);P_SPINR(c),XR(E)
  • Actual
    • R(E);
    • Threat
      • R1(E),XR(c)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(E)::QAB(A)
      • K(b);P_SPINR(c),S_FLIGHT::QAB(A)+S(C),DCHECK
      • R(c);P_SPINS(d),SBLOCK,XR(E)::S(H)
      • R(c);P_SPINS(d),XS(H)::QAB(A)
      • S(e);SBLOCK,XR(E)::B(I)
      • R(c);P_SPINS(d),SBLOCK::R1(E)
      • R(c);P_SPINS(d)::S(H)
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