MESON Chess Problem Database

Problem Display
PID: 118648 (1RR5/5B2/3KP1r1/2N2p2/2k3p1/b2NpP2/1Bp5/3r1Q2 w - - 0 1)

Simonet, Andre

Apprenti Sorcier, 1993

1RR5/5B2/3KP1r1/2N2p2/2k3p1/b2NpP2/1Bp5/3r1Q2

#2

10 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Se5#
    • 1...Rb1
      • 2.Se5#
    • 1...Rc1
      • 2.Se5#
    • 1...Re1
      • 2.Se5#
    • 1...Rxf1
      • 2.Se5#
    • 1...Rxd3+
      • 2.Qxd3#
    • 1...Rg5
      • 2.e7#
    • 1...Rxe6+
      • 2.Bxe6#
    • 1...Rg8
      • 2.e7#
    • 1...Bxb2
      • 2.Sb3#
    • 1...Bb4
      • 2.Rxb4#
    • 1...Bxc5+
      • 2.Rxc5#
  • Tries
    • 1.Kc6?
      • threat
        • 2.Se5#
      • 1...Rxe6+
        • 2.Bxe6#
      • 1...Rxd3
        • 2.Qxd3#
      • 1...Bxb2!
    • 1.Be8?
      • threat
        • 2.Bb5#
      • 1...Rxd3+
        • 2.Qxd3#
      • 1...Bxc5+
        • 2.Rxc5#
      • 1...Bxb2
        • 2.Sb3#
      • 1...Rxe6+!
  • Keys
    • 1.fxg4!
      • threat
        • 2.Qf4#
      • 1...Rxd3+
        • 2.Qxd3#
      • 1...Rxe6+
        • 2.Bxe6#
      • 1...Bxc5+
        • 2.Rxc5#
      • 1...Rxf1
        • 2.Se5#
      • 1...Rxg4
        • 2.e7#
      • 1...Bxb2
        • 2.Sb3#
      • 1...f4
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(a);N_PINS(C),P_PINS(E)::QAB(A)+S(C),DCHECK
    • R(a);N_PINS(C),P_PINS(E),XQ(A)::S(C)
    • R(a);CHECK,OGATE,P_PINS(E),P_SPINR(a),XS(C)::QAB1(A),XR(a)
    • R(h);N_PINP(G)::B(H)+P(G)
    • R(h);CHECK,OGATE,P_SPINR(h),XP(G)::B(H),XR(h)
    • B(c);XB(B)::R(J)+S(E)
    • B(c);N_GUARD::R1(I),XB(c)
    • B(c);CHECK,OGATE,P_SPINB(c),XS(E)::R1(J),XB(c)
  • Tries
    • Try
      • K(F);N_SPINS(C),P-FLIGHT
      • Threat
        • QAB(A)+S(C),DCHECK
      • Vars
        • R(h);CHECK,OGATE,P_SPINR(h),XP(G)::B(H),XR(h)
        • R(a);OGATE,P_SPINR(a),XS(C)::QAB1(A),XR(a)
      • Refutation
        • B(c);XB(B)
    • Try
      • B(H);
      • Threat
        • B(H)
      • Vars
        • R(a);CHECK,OGATE,P_PINS(E),P_SPINR(a),XS(C)::QAB1(A),XR(a)
        • B(c);CHECK,OGATE,P_SPINB(c),XS(E)::R1(J),XB(c)
        • B(c);XB(B)::R(J)+S(E)
      • Refutation
        • R(h);CHECK,XP(G)
  • Actual
    • P(D);XP(f)
    • Threat
      • QAR(A)
    • Vars
      • R(a);CHECK,OGATE,P_PINS(E),P_SPINR(a),XS(C)::QAB1(A),XR(a)
      • R(h);CHECK,OGATE,P_SPINR(h),XP(G)::B(H),XR(h)
      • B(c);CHECK,OGATE,P_SPINB(c),XS(E)::R1(J),XB(c)
      • R(a);N_PINS(C),P_PINS(E),XQ(A)::S(C)
      • R(h);N_PINP(G),XP(D)::B(H)+P(G)
      • B(c);XB(B)::R(J)+S(E)
      • P(g);::QAR(A),XP(g)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).