MESON Chess Problem Database

Problem Display
PID: 8055 (3RQR2/4p3/4p1K1/2p5/2p3p1/bN4B1/r3k1N1/r6n w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

3RQR2/4p3/4p1K1/2p5/2p3p1/bN4B1/r3k1N1/r6n

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Rxd2#
    • 1...Bb2
      • 2.Rd2#
    • 1...Sf2
      • 2.Rxf2#
  • Tries
    • 1.Qd7?
      • threat
        • 2.Qxe6#
      • 1...Rd2
        • 2.Qxd2#
      • 1...Sf2
        • 2.Rxf2#
      • 1...Bc1
        • 2.Qd1#
      • 1...Bb2
        • 2.Qd2#
      • 1...e5
        • 2.Qxg4#
      • 1...Sxg3!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qxe6#
      • 1...Sxg3
        • 2.Qf2#
      • 1...Rd2
        • 2.Rxd2#
      • 1...Sf2
        • 2.Qxf2#
      • 1...Bc1
        • 2.Qf1#
      • 1...Bb2
        • 2.Rd2#
      • 1...e5
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD::R1(E),XR(c)
    • B(e);S_CUTR(c)::R1(E)
    • S(b);N_GUARD::R1(G),XS(b)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAR(F),XP(i)
      • Vars
        • R(c);N_GUARD::QAR1(F),XR(c)
        • S(b);N_GUARD::R1(G),XS(b)
        • B(e);S_CUTR(a)::QAB1(F)
        • B(e);S_CUTR(c)::QAR1(F)
        • P(i);OGATE::QAB(F),XP(g)
      • Refutation
        • S(b);XB(C)
  • Actual
    • Q(F);
    • Threat
      • QAR(F),XP(i)
    • Vars
      • S(b);N_GUARD,XB(C)::QAR1(F)
      • R(c);N_GUARD::R1(E),XR(c)
      • S(b);N_GUARD::QAR1(F),XS(b)
      • B(e);S_CUTR(a)::QAB1(F)
      • B(e);S_CUTR(c)::R1(E)
      • P(i);OGATE::QAB(F),XP(f)
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