MESON Chess Problem Database

Problem Display
PID: 239969 (8/3R2nQ/n7/1p4bp/1B2N1p1/1K1BkpP1/2Prr3/5R2 w - - 0 1)

Kipping, Cyril Stanley

Parallele 50, 1951

8/3R2nQ/n7/1p4bp/1B2N1p1/1K1BkpP1/2Prr3/5R2

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd3+
      • 2.Rxd3#
    • 1...Re1
      • 2.Bxd2#
    • 1...Bh6
      • 2.Qxh6#
    • 1...Sc5+
      • 2.Bxc5#
    • 1...Sc7
      • 2.Bc5#
    • 1...Sb8
      • 2.Bc5#
  • Tries
    • 1.Sf2?
      • threat
        • 2.Qe4#
      • 1...Rxd3+
        • 2.Rxd3#
        • 2.Qxd3#
      • 1...Sc5+
        • 2.Bxc5#
      • 1...Sf5!
    • 1.Sc3?
      • threat
        • 2.Qe4#
      • 1...Sc5+
        • 2.Bxc5#
      • 1...Rxc2
        • 2.Sd1#
      • 1...Rxd3
        • 2.Rxd3#
        • 2.Qxd3#
      • 1...Rd1
        • 2.Sxd1#
      • 1...Sf5!
    • 1.Sc5?
      • threat
        • 2.Qe4#
      • 1...Rxd3+
        • 2.Rxd3#
        • 2.Qxd3#
      • 1...Sxc5+
        • 2.Bxc5#
      • 1...Sf5!
    • 1.Sxg5?
      • threat
        • 2.Qe4#
      • 1...Rxd3+
        • 2.Rxd3#
        • 2.Qxd3#
      • 1...Sc5+
        • 2.Bxc5#
      • 1...Sf5!
    • 1.Sf6?
      • threat
        • 2.Qe4#
      • 1...Rxd3+
        • 2.Rxd3#
        • 2.Qxd3#
      • 1...Sc5+
        • 2.Bxc5#
      • 1...Sf5!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qe4#
      • 1...Rxd3+
        • 2.Qxd3#
      • 1...Sc5+
        • 2.Bxc5#
      • 1...Kd4
        • 2.Sc4#
      • 1...Sf5
        • 2.Sxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(a);CHECK,OGATE,XB(D)::R1(H),XR(a)
    • R(b);N_GUARD::B(F),XR(a)
    • B(g);OGATEB::QAB(I),XB(g)
    • S(i);CHECK,N_GUARD::B(F),XS(i)
    • S(i);N_GUARD::B(F)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAR1(I)
      • Vars
        • S(i);CHECK,N_GUARD::B(F),XS(i)
      • Refutation
        • S(j);
    • Try
      • S(G);
      • Threat
        • QAR1(I)
      • Vars
        • S(i);CHECK,N_GUARD::B(F),XS(i)
        • R(a);N_GUARD,XP(B)::S(G)
        • R(a);N_GUARD::S(G),XR(a)
      • Refutation
        • S(j);
    • Try
      • S(G);
      • Threat
        • QAR1(I)
      • Vars
        • S(i);CHECK,OGATE,XS(G)::B(F),XS(i)
      • Refutation
        • S(j);
    • Try
      • S(G);XB(g)
      • Threat
        • QAR1(I)
      • Vars
        • S(i);CHECK,N_GUARD::B(F),XS(i)
      • Refutation
        • S(j);
    • Try
      • S(G);
      • Threat
        • QAR1(I)
      • Vars
        • S(i);CHECK,N_GUARD::B(F),XS(i)
      • Refutation
        • S(j);
  • Actual
    • S(G);
    • Threat
      • QAR1(I)
    • Vars
      • R(a);CHECK,OGATE,XB(D)::QAR1(I),XR(a)
      • S(i);CHECK,N_GUARD::B(F),XS(i)
      • K(c);S_FLIGHT::R(H)+S(G)
      • S(j);N_GUARD::S(G),XS(j)
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