MESON Chess Problem Database

Problem Display
PID: 55309 (8/1p2K3/2N2p2/1Q2pP1R/1P1pk3/5pP1/1b3P2/B1N4B w - - 0 1)

Rice, John Michael

Comm., The Problemist, 2004

8/1p2K3/2N2p2/1Q2pP1R/1P1pk3/5pP1/1b3P2/B1N4B

#2

11 + 7

4258 Brian Harley Award 2003-2004
136 Problem Observer 2005
56 The Problemist 2007
15323 FIDE Album (2004-2006) 2013

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Qxd3#
    • 1...bxc6
      • 2.Qxc6#
  • Tries
    • 1.Kd6?
      • threat
        • 2.Qe2#
        • 2.Qd3#
        • 2.Qd5#
      • 1...bxc6
        • 2.Qe2#
        • 2.Qd3#
        • 2.Qxc6#
      • 1...d3
        • 2.Qxd3#
        • 2.Qd5#
      • 1...Bxc1!
    • 1.Ke6?
      • threat
        • 2.Rh4#
        • 2.Qe2#
        • 2.Qd3#
        • 2.Qd5#
      • 1...bxc6
        • 2.Rh4#
        • 2.Qe2#
        • 2.Qd3#
        • 2.Qxc6#
      • 1...d3
        • 2.Rh4#
        • 2.Qxd3#
        • 2.Qd5#
      • 1...Bxc1!
    • 1.Kxf6?
      • threat
        • 2.Rh4#
        • 2.Qxe5#
      • 1...d3
        • 2.Rh4#
        • 2.Qxd3#
      • 1...Bxc1!
    • 1.Sa5?
      • threat
        • 2.Qxb7#
      • 1...d3
        • 2.Qxd3#
      • 1...b6
        • 2.Qc6#
      • 1...Bxc1!
    • 1.Sxe5?
      • threat
        • 2.Bxf3#
      • 1...fxe5
        • 2.Qxb7#
      • 1...d3!
    • 1.Sa7?
      • threat
        • 2.Qxb7#
      • 1...d3
        • 2.Qxd3#
      • 1...b6
        • 2.Qc6#
      • 1...Bxc1!
    • 1.Sb8?
      • threat
        • 2.Qxb7#
      • 1...d3
        • 2.Qxd3#
      • 1...b6
        • 2.Qc6#
      • 1...Bxc1!
    • 1.Sd8?
      • threat
        • 2.Qxb7#
      • 1...d3
        • 2.Qxd3#
      • 1...b6
        • 2.Qc6#
      • 1...Bxc1!
    • 1.Bxb2?
      • 1...bxc6
        • 2.Qxc6#
      • 1...d3
        • 2.Qxd3#
        • 2.Qc4#
      • 1...b6!
  • Keys
    • 1.Sxd4!
      • threat
        • 2.Rh4#
      • 1...Kxd4
        • 2.Qd3#
      • 1...Bxc1
        • 2.Bxf3#
      • 1...Bxd4
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • P(c);::QAB1(G),XP(c)
    • P(g);OGATE,XS(J)::QAB(G),XP(g)
  • Tries
    • Try
      • K(K);S_FLIGHT
      • Threat
        • DUALS(3)
      • Refutation
        • B(a);XS(B)
    • Try
      • K(K);P-FLIGHT
      • Threat
        • DUALS(4)
      • Refutation
        • B(a);XS(B)
    • Try
      • K(K);S_FLIGHT,XP(f)
      • Threat
        • DUALS(2)
      • Refutation
        • B(a);XS(B)
    • Try
      • S(J);
      • Threat
        • QAB(G),XP(g)
      • Vars
        • P(c);::QAB1(G),XP(c)
        • P(g);N_GUARD::QAB(G)
      • Refutation
        • B(a);XS(B)
    • Try
      • S(J);XP(e)
      • Threat
        • B(C),XP(b)
      • Vars
        • P(f);SBLOCK,XS(J)::QAB(G),XP(g)
      • Refutation
        • P(c);
    • Try
      • S(J);
      • Threat
        • QAB(G),XP(g)
      • Vars
        • P(c);::QAB1(G),XP(c)
        • P(g);N_GUARD::QAB(G)
      • Refutation
        • B(a);XS(B)
    • Try
      • S(J);
      • Threat
        • QAB(G),XP(g)
      • Vars
        • P(c);::QAB1(G),XP(c)
        • P(g);N_GUARD::QAB(G)
      • Refutation
        • B(a);XS(B)
    • Try
      • S(J);
      • Threat
        • QAB(G),XP(g)
      • Vars
        • P(c);::QAB1(G),XP(c)
        • P(g);N_GUARD::QAB(G)
      • Refutation
        • B(a);XS(B)
    • Try
      • B(A);XB(a)
      • Vars
        • P(g);OGATE,XS(J)::QAB(G),XP(g)
      • Refutation
        • P(g);
  • Actual
    • S(J);XP(c)
    • Threat
      • R(I)
    • Vars
      • K(d);N_SPINP(b),P-FLIGHT,P_SPINB(a),XS(J)::QAR1(G)
      • B(a);XS(B)::B(C),XP(b)
      • B(a);XS(J)::QAB(G),XP(g)
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