MESON Chess Problem Database

Problem Display
PID: 78012 (5nR1/3b3p/5pqp/3r2kp/p1R1Q3/8/2K2PN1/4B3 w - - 0 1)

Rice, John Michael

The Tablet, 1955

(First published on Sat Oct 1 1955)

5nR1/3b3p/5pqp/3r2kp/p1R1Q3/8/2K2PN1/4B3

#2

7 + 10

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2+
      • 2.Bxd2#
    • 1...Rd3
      • 2.Qf4#
    • 1...Ra5
      • 2.Bd2#
    • 1...Rb5
      • 2.Bd2#
    • 1...Rc5
      • 2.Bd2#
    • 1...Re5
      • 2.Bd2#
    • 1...Rf5
      • 2.Qh4#
    • 1...Bg4
      • 2.f4#
    • 1...f5
      • 2.Qh4#
      • 2.Qe7#
  • Tries
    • 1.Rxg6+?
      • 1...hxg6
        • 2.Qf4#
      • 1...Sxg6!
    • 1.f3?
      • threat
        • 2.Bh4#
      • 1...Rd2+
        • 2.Bxd2#
      • 1...h4!
  • Keys
    • 1.Sh4!
      • threat
        • 2.Sf3#
      • 1...Rd2+
        • 2.Bxd2#
      • 1...Bg4
        • 2.f4#
      • 1...f5
        • 2.Qe7#
      • 1...Rd3
        • 2.Qf4#
      • 1...Rf5
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(b);CHECK,N_GUARD::B(A),XR(b)
    • R(b);N_PINQ(F)::QAB1(F)
    • R(b);N_GUARD::B(A)
    • R(b);N_GUARD,P_PINR(E)::B(A)
    • R(b);N_PINQ(F),SBLOCK::QAB1(F)
    • B(h);SBLOCK::P(C)
  • Tries
    • Try
      • R(G);CHECK,N_SPINQ(F),XQ(f)
      • Vars
        • P(i);SBLOCK,XR(G)::QAB1(F)
      • Refutation
        • S(j);XR(G)
    • Try
      • P(C);
      • Threat
        • B(A)
      • Vars
        • R(b);CHECK,N_GUARD::B(A),XR(b)
      • Refutation
        • P(d);
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • R(b);CHECK,N_GUARD::B(A),XR(b)
      • B(h);SBLOCK::P(C)
      • P(e);N_PINQ(F)::QAB(F)
      • R(b);N_PINQ(F)::QAB1(F)
      • R(b);N_PINQ(F)::QAR(F)
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