MESON Chess Problem Database

Problem Display
PID: 234247 (1N1bN1R1/2p1k3/2p3Pn/8/3p2p1/1Q5p/1ppP4/Rr2B2K w - - 0 1)

Kipping, Cyril Stanley

The Chess Review, 1941

1N1bN1R1/2p1k3/2p3Pn/8/3p2p1/1Q5p/1ppP4/Rr2B2K

#2

9 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe1+
      • 2.Rxe1#
    • 1...Sf5
      • 2.Qf7#
    • 1...Sf7
      • 2.Qxf7#
    • 1...Sxg8
      • 2.Qf7#
    • 1...c1S
      • 2.Bh4#
    • 1...c1B
      • 2.Bh4#
  • Tries
    • 1.Kh2?
      • threat
        • 2.Bh4#
      • 1...Rxe1
        • 2.Rxe1#
      • 1...Sxg8
        • 2.Qf7#
      • 1...Sf5
        • 2.Qf7#
      • 1...Sf7
        • 2.Qxf7#
      • 1...g3+!
    • 1.Qd5?
      • threat
        • 2.Sxc6#
        • 2.Qe4#
        • 2.Qe5#
        • 2.Qd7#
      • 1...Rxe1+
        • 2.Rxe1#
      • 1...Sxg8
        • 2.Qf7#
      • 1...c1Q
        • 2.Qe4#
        • 2.Qe5#
        • 2.Qd7#
      • 1...c1R
        • 2.Qe4#
        • 2.Qe5#
        • 2.Qd7#
      • 1...Sf7
        • 2.Sxc6#
        • 2.Qxf7#
        • 2.Qd7#
      • 1...c5
        • 2.Sc6#
        • 2.Qe4#
        • 2.Qe5#
        • 2.Qd7#
      • 1...cxd5!
    • 1.Qf3?
      • threat
        • 2.Qe2#
        • 2.Qe4#
        • 2.Qf6#
      • 1...Rxe1+
        • 2.Rxe1#
      • 1...Ke6
        • 2.Qe4#
      • 1...Sxg8
        • 2.Qf7#
      • 1...c1S
        • 2.Qe4#
        • 2.Qf6#
      • 1...Sf5
        • 2.Qe4#
      • 1...Sf7
        • 2.Qf6#
        • 2.Qxf7#
      • 1...d3
        • 2.Qe4#
        • 2.Qe3#
        • 2.Qf6#
      • 1...gxf3!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qe2#
      • 1...Rxe1+
        • 2.Rxe1#
      • 1...Sxg8
        • 2.Qf7#
      • 1...c1S
        • 2.Bh4#
      • 1...Sf5
        • 2.Qf7#
      • 1...Sf7
        • 2.Qxf7#
      • 1...d3
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(a);CHECK,OGATE,XB(B)::R(A),XR(a)
    • S(h);N_GUARD::QAR1(E)
    • S(h);N_GUARD::QAR1(E),XS(h)
    • S(h);N_GUARD,XR(I)::QAR1(E)
    • P(c);N_PINB(B)::B(B)
  • Tries
    • Try
      • K(C);N_SPINB(B),P-FLIGHT
      • Threat
        • B(B)
      • Vars
        • R(a);OGATE,XB(B)::R(A),XR(a)
        • S(h);N_GUARD,XR(I)::QAR1(E)
        • S(h);N_GUARD::QAR1(E)
        • S(h);N_GUARD::QAR1(E),XS(h)
      • Refutation
        • P(f);CHECK
    • Try
      • Q(E);
      • Threat
        • DUALS(4)
      • Vars
        • R(a);CHECK,OGATE,XB(B)::R(A),XR(a)
        • S(h);N_GUARD,XR(I)::QAR1(E)
      • Refutation
        • P(g);XQ(E)
    • Try
      • Q(E);
      • Threat
        • DUALS(3)
      • Vars
        • R(a);CHECK,OGATE,XB(B)::R(A),XR(a)
        • K(j);P-FLIGHT::QAR2(E)
        • S(h);N_GUARD,XR(I)::QAR1(E)
        • S(h);::QAR(E)
      • Refutation
        • P(f);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAR(E)
    • Vars
      • R(a);CHECK,OGATE,XB(B)::R(A),XR(a)
      • S(h);N_GUARD,XR(I)::QAR1(E)
      • P(c);N_PINB(B)::B(B)
      • S(h);N_GUARD::QAR1(E)
      • S(h);N_GUARD::QAR1(E),XS(h)
      • P(e);OGATE::QAR(E)
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