MESON Chess Problem Database

Problem Display
PID: 47731 (Qq2r3/2pp3p/2bP1B2/1p6/pN1pk1BK/3RPp2/NPR3PP/b4r2 w - - 0 1)

Delobel, Bernard

Problemesis, 2003

Qq2r3/2pp3p/2bP1B2/1p6/pN1pk1BK/3RPp2/NPR3PP/b4r2

#2

13 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Qa7
      • 2.Qxe8#
    • 1...Qb6
      • 2.Qxe8#
    • 1...Qb7
      • 2.Qxe8#
    • 1...Rb1
      • 2.gxf3#
    • 1...Rc1
      • 2.gxf3#
    • 1...Rd1
      • 2.gxf3#
    • 1...Re1
      • 2.gxf3#
    • 1...Rg1
      • 2.gxf3#
    • 1...Rh1
      • 2.gxf3#
    • 1...Bd5
      • 2.Qxd5#
    • 1...dxe3
      • 2.Rd4#
  • Tries
    • 1.Rf2?
      • threat
        • 2.gxf3#
      • 1...fxg2
        • 2.Bf5#
      • 1...dxe3
        • 2.Rd4#
      • 1...Rxf2!
    • 1.Rc5?
      • threat
        • 2.Bf5#
      • 1...dxe3
        • 2.Rd4#
      • 1...Re5
        • 2.Rxe5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...fxg2!
  • Keys
    • 1.Rcc3!
      • threat
        • 2.Rxd4#
      • 1...dxc3
        • 2.Sxc3#
      • 1...dxe3
        • 2.Rd4#
      • 1...Qa7
        • 2.Qxe8#
      • 1...Qb6
        • 2.Qxe8#
      • 1...Rd1
        • 2.gxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(l);OGATE::QAR(M),XR(m)
    • Q(l);N_SPINB(h),OGATE::QAR(M),XR(m)
    • R(b);N_GUARD::P(D),XP(c)
    • R(b);N_GUARD,P_PINP(E)::P(D),XP(c)
    • B(h);OGATE::QAB1(M),XB(h)
    • P(e);SBLOCK,XP(G)::R1(F)
  • Tries
    • Try
      • R(C);
      • Threat
        • P(D),XP(c)
      • Vars
        • P(c);XP(D)::B(I)
        • P(e);SBLOCK,XP(G)::R1(F)
      • Refutation
        • R(b);XR(C)
    • Try
      • R(C);
      • Threat
        • B(I)
      • Vars
        • P(e);SBLOCK,XP(G)::R1(F)
        • R(m);N_GUARD::R1(C),XR(m)
        • B(h);OGATE::QAB1(M),XB(h)
      • Refutation
        • P(c);XP(D)
  • Actual
    • R(C);
    • Threat
      • R1(F),XP(e)
    • Vars
      • P(e);XR(C)::S(A),XP(e)
      • P(e);XP(G)::R1(F)
      • Q(l);OGATE::QAR(M),XR(m)
      • R(b);N_GUARD::P(D),XP(c)
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