MESON Chess Problem Database

Problem Display
PID: 175477 (3R4/b4K1n/2pN4/P2k4/2b4p/5P1r/1rR1N1Q1/B6B w - - 0 1)

Rhawn, WH

American Chess Magazine, 1899

3R4/b4K1n/2pN4/P2k4/2b4p/5P1r/1rR1N1Q1/B6B

#2

10 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Se4#
      • 2.Sb7#
    • 1...Ra2
      • 2.Se4#
      • 2.Sb7#
    • 1...Rxc2
      • 2.Se4#
      • 2.Sb7#
    • 1...Rb3
      • 2.Se4#
      • 2.Sb7#
    • 1...Rb4
      • 2.Se4#
      • 2.Sb7#
    • 1...Rb5
      • 2.Se4#
      • 2.Sb7#
    • 1...Rb6
      • 2.Se4#
      • 2.Sb7#
    • 1...Rb7+
      • 2.Sxb7#
    • 1...Sg5+
      • 2.Qxg5#
    • 1...Sf6
      • 2.Qg5#
    • 1...Sf8
      • 2.Qg5#
  • Tries
    • 1.f4+?
      • 1...Kc5+
        • 2.Rxc4#
      • 1...Rf3!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qf5#
      • 1...Kc5+
        • 2.Qxc4#
      • 1...Ke5+
        • 2.Sxc4#
      • 1...Rb7+
        • 2.Sxb7#
      • 1...Sg5+
        • 2.Qxg5#
      • 1...Bxe2
        • 2.Qe4#
      • 1...Bd3
        • 2.Qe6#
      • 1...Bd4
        • 2.Qxd4#
      • 1...c5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(a);CHECK::R(J)+S(H),XR(a)
    • S(h);CHECK,N_GUARD::QAR(E),XS(h)
    • S(h);N_GUARD::QAR(E)
  • Tries
    • Try
      • P(F);CHECK
      • Vars
        • K(e);CHECK,P-FLIGHT,P_SPINB(c)::R1(C),XB(c)
      • Refutation
        • R(b);P_PINP(F),P_SPINR(b)
  • Actual
    • Q(E);
    • Threat
      • QAR2(E)
    • Vars
      • K(e);CHECK,P-FLIGHT,P_SPINB(c)::QAR1(E),XB(c)
      • K(e);CHECK,P-FLIGHT,P_SPINR(a)::S(H),XB(c)
      • R(a);CHECK::R(J)+S(H),XR(a)
      • S(h);CHECK,N_GUARD::QAR(E),XS(h)
      • B(c);XS(D)::QAB1(E)
      • B(c);::QAB1(E)
      • B(g);N_GUARD::QAR1(E),XB(g)
      • P(f);SBLOCK::QAB1(E)
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