MESON Chess Problem Database

Problem Display
PID: 193831 (b6n/2p1kNQ1/1P1p2Pb/K4Pr1/B3r3/B5N1/4R3/3R4 w - - 0 1)

Janet, Frank

Pittsburgh Gazette-Times, 1916

b6n/2p1kNQ1/1P1p2Pb/K4Pr1/B3r3/B5N1/4R3/3R4

#2

11 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Re5+
      • 2.Rxe5#
    • 1...Re6
      • 2.Rxe6#
  • Tries
    • 1.Sxd6+?
      • 1...Kd8
        • 2.Qxc7#
        • 2.Qd7#
        • 2.bxc7#
      • 1...Sf7
        • 2.Sc8#
      • 1...Bxg7!
    • 1.Sxh6+?
      • 1...Kd8
        • 2.Qxc7#
        • 2.Qd7#
      • 1...Sf7!
    • 1.Sxh8+?
      • 1...Kd8
        • 2.Qxc7#
        • 2.Qd7#
      • 1...Bxg7!
  • Keys
    • 1.Rxd6!
      • threat
        • 2.Re6#
      • 1...Re5+
        • 2.Rxe5#
      • 1...Rxf5+
        • 2.Sxf5#
      • 1...cxb6+
        • 2.Rxb6#
      • 1...Sxf7
        • 2.Qxf7#
      • 1...cxd6
        • 2.Bxd6#
      • 1...Bc6
        • 2.Rd8#
      • 1...c6
        • 2.Rxe4#
      • 1...Re6
        • 2.Rexe6#
        • 2.Rdxe6#
      • 1...c5
        • 2.f6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • R(a);CHECK,N_PINP(G),OGATE::R(B),XR(a)
    • R(a);OGATE::R1(B),XR(a)
  • Tries
    • Try
      • S(J);CHECK,XP(c)
      • Vars
        • S(h);P_SPINS(h)::B(C)+S(J),DCHECK
      • Refutation
        • B(d);XQ(K)
    • Try
      • S(J);CHECK,XB(d)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • S(J);CHECK,XS(h)
      • Refutation
        • B(d);XQ(K)
  • Actual
    • R(A);XP(c)
    • Threat
      • B(C)+R(A),DCHECK
    • Vars
      • R(a);CHECK,N_PINP(G),OGATE::R(B),XR(a)
      • R(b);CHECK,XP(G)::S(D),XR(b)
      • P(e);CHECK,OGATE,XP(H)::B(C)+R(A),XP(e)
      • S(h);OGATE,P_SPINS(h),XS(J)::QAR1(K),XS(h)
      • P(e);OGATE,P_SPINP(e),XR(A)::B(C),XP(e)
      • B(g);S_CUTP(e)::B(C)+R(A)
      • P(e);S_CUTB(g)::R(B),XR(a)
      • P(e);N_PINP(G)::P(G)
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