MESON Chess Problem Database

Problem Display
PID: 153810 (8/3b2N1/3PR1N1/r1R5/PppkP1p1/7n/2P5/4QK2 w - - 0 1)

Robert, Philippe

Probleemblad, 2014

8/3b2N1/3PR1N1/r1R5/PppkP1p1/7n/2P5/4QK2

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa4
      • 2.Rd5#
    • 1...Rxc5
      • 2.Qd2#
    • 1...Ra6
      • 2.Rd5#
    • 1...Ra7
      • 2.Rd5#
    • 1...Ra8
      • 2.Rd5#
    • 1...Bb5
      • 2.Rd5#
    • 1...Bxe6
      • 2.Sxe6#
  • Tries
    • 1.Ree5?
      • threat
        • 2.Red5#
        • 2.Qd2#
      • 1...Rxc5
        • 2.Qd2#
      • 1...Bc6
        • 2.Sf5#
        • 2.Se6#
        • 2.Qd2#
      • 1...Be6
        • 2.Sxe6#
        • 2.Qd2#
      • 1...Sf2
        • 2.Red5#
      • 1...c3
        • 2.Red5#
      • 1...Sf4!
    • 1.Qxb4?
      • threat
        • 2.Sf5#
      • 1...Ke3
        • 2.Qc3#
      • 1...Rxc5
        • 2.Qd2#
      • 1...Bxe6!
  • Keys
    • 1.Se5!
      • threat
        • 2.Rxc4#
      • 1...Kxc5
        • 2.Qe3#
      • 1...Rxc5
        • 2.Sf5#
      • 1...Bxe6
        • 2.Sxe6#
      • 1...Bb5
        • 2.Rd5#
      • 1...c3
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(f);N_GUARD,XP(D)::R1(F)
    • R(f);SBLOCK,XR(F)::QAR2(A)
    • R(f);N_GUARD::R1(F)
    • B(g);S_CUTR(f)::R1(F)
    • B(g);XR(H)::S(J),XB(g)
  • Tries
    • Try
      • R(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);XR(F)::QAR2(A)
        • S(a);::R1(H)
        • P(c);::R1(H)
      • Refutation
        • S(a);
    • Try
      • Q(A);P_PINP(c),XP(b)
      • Threat
        • S(J)
      • Vars
        • K(d);N_SPINP(c),S_FLIGHT::QAR2(A)
        • R(f);SBLOCK,XR(F)::QAR2(A)
      • Refutation
        • B(g);XR(H)
  • Actual
    • S(I);
    • Threat
      • R1(F),XP(c)
    • Vars
      • K(d);S_FLIGHT,XR(F)::QAB(A)
      • R(f);SBLOCK,XR(F)::S(J)
      • B(g);XR(H)::S(J),XB(g)
      • B(g);S_CUTR(f)::R1(F)
      • P(c);::R1(F)
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