MESON Chess Problem Database

Problem Display
PID: 213424 (R3B2K/1k4P1/1N2R3/1N6/2p5/3pp3/rb6/Qr6 w - - 0 1)

Rothwell, Stephen

Badische Neueste Nachrichten, 1992

R3B2K/1k4P1/1N2R3/1N6/2p5/3pp3/rb6/Qr6

#2

8 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1+
      • 2.Qxh1#
    • 1...Ra6
      • 2.Qxa6#
    • 1...Ra7
      • 2.Qxa7#
    • 1...Rxa8
      • 2.Qxa8#
    • 1...Bxg7+
      • 2.Qxg7#
  • Tries
    • 1.Sd6+?
      • 1...Kc7
        • 2.Sd5#
      • 1...Kxb6!
    • 1.Bh5?
      • threat
        • 2.Bf3#
      • 1...Rxa8+
        • 2.Qxa8#
      • 1...Bxg7+
        • 2.Qxg7#
      • 1...Rh1
        • 2.Qxh1#
      • 1...Rf1!
    • 1.Bd7?
      • threat
        • 2.Bc8#
      • 1...Rh1+
        • 2.Qxh1#
      • 1...Rxa8+
        • 2.Qxa8#
      • 1...Bxg7+!
    • 1.Ra7+?
      • 1...Rxa7
        • 2.Qxa7#
      • 1...Kb8!
    • 1.Rb8+?
      • 1...Ka6
        • 2.Sxc4#
      • 1...Kxb8!
  • Keys
    • 1.Bg6!
      • threat
        • 2.Be4#
      • 1...Rh1+
        • 2.Qxh1#
      • 1...Rxa8+
        • 2.Qxa8#
      • 1...Bxg7+
        • 2.Qxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(a);CHECK,OGATE::QAB(A),XR(a)
    • R(b);OGATE::QAB1(A),XR(b)
    • R(b);OGATE::QAR1(A),XR(b)
    • R(b);OGATE,P_PINB(G),XR(F)::QAB1(A),XR(b)
    • B(c);CHECK,OGATE,XP(E)::QAR(A),XB(c)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(g);P-FLIGHT::S(C)
      • Refutation
        • K(g);P-FLIGHT,XS(C)
    • Try
      • B(G);
      • Threat
        • B(G)
      • Vars
        • R(b);CHECK,OGATE,XR(F)::QAB1(A),XR(b)
        • B(c);CHECK,OGATE,XP(E)::QAR(A),XB(c)
        • R(a);OGATE,P_PINB(G)::QAB(A),XR(a)
      • Refutation
        • R(a);
    • Try
      • B(G);
      • Threat
        • B(G)
      • Vars
        • R(a);CHECK,OGATE::QAB(A),XR(a)
        • R(b);CHECK,OGATE,XR(F)::QAB1(A),XR(b)
      • Refutation
        • B(c);CHECK,XP(E)
    • Try
      • R(F);CHECK
      • Vars
        • R(b);OGATE,XR(F)::QAR1(A),XR(b)
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • K(g);P_SPINR(b),S_FLIGHT::R(D)+S(C),XP(f)
      • Refutation
        • K(g);P-FLIGHT,XR(F)
  • Actual
    • B(G);
    • Threat
      • B(G)
    • Vars
      • R(a);CHECK,OGATE::QAB(A),XR(a)
      • R(b);CHECK,OGATE,XR(F)::QAB1(A),XR(b)
      • B(c);CHECK,OGATE,XP(E)::QAR(A),XB(c)
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