MESON Chess Problem Database

Problem Display
PID: 47416 (4R1n1/K4n2/2ppB1p1/1p2P3/1B1k4/1p6/5R2/1Q1N2b1 w - - 0 1)

Shanshin, Valery Yurevich

Slesarenko, Anatoly Vasilevich

2nd Prize, Magadansky Komsomolets, 1991

4R1n1/K4n2/2ppB1p1/1p2P3/1B1k4/1p6/5R2/1Q1N2b1

#2

8 + 9

4827 FIDE Album (1989-1991) 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Bc3#
    • 1...Sxe5
      • 2.Rf4#
    • 1...c5
      • 2.Bc3#
    • 1...dxe5
      • 2.Rd2#
  • Tries
    • 1.Kb6?
      • threat
        • 2.Bc3#
      • 1...Kxe5
        • 2.Bc3#
      • 1...d5!
    • 1.Bc4?
      • threat
        • 2.Rf4#
        • 2.Qd3#
      • 1...Kxc4
        • 2.Qe4#
      • 1...Bxf2
        • 2.Qd3#
      • 1...Sxe5
        • 2.Rf4#
      • 1...bxc4
        • 2.Rd2#
      • 1...dxe5
        • 2.Qd3#
      • 1...Bh2
        • 2.Qd3#
      • 1...Sg5
        • 2.Qd3#
      • 1...Sf6
        • 2.Qd3#
      • 1...g5
        • 2.Qd3#
      • 1...Se7!
    • 1.Bf5?
      • threat
        • 2.Qd3#
        • 2.Qe4#
      • 1...Kc4
        • 2.Qe4#
      • 1...Kd5
        • 2.Qd3#
        • 2.Qe4#
      • 1...Sxe5
        • 2.Qe4#
      • 1...Se7
        • 2.Qe4#
      • 1...Sg5
        • 2.Qd3#
      • 1...Sf6
        • 2.Qd3#
      • 1...d5
        • 2.Rf4#
        • 2.Qd3#
      • 1...gxf5!
    • 1.Qd3+?
      • 1...Kxe5
        • 2.Bc3#
        • 2.Qe3#
      • 1...Kxd3!
  • Keys
    • 1.Bd5!
      • threat
        • 2.Rd2#
        • 2.Qe4#
      • 1...Kxd5
        • 2.Qd3#
      • 1...Bxf2
        • 2.Qe4#
      • 1...Sxe5
        • 2.Qe4#
      • 1...cxd5
        • 2.Rf4#
      • 1...Se7
        • 2.Qe4#
      • 1...Sg5
        • 2.Rd2#
      • 1...Sf6
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • K(c);P_PINR(C),S_FLIGHT,XP(E)::B(D)
    • S(h);SBLOCK,XP(E)::R(C)
    • P(e);SBLOCK::B(D)
    • P(f);SBLOCK,XP(E)::R(C)
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Threat
        • B(D)
      • Vars
        • K(c);P_PINR(C),S_FLIGHT,XP(E)::B(D)
      • Refutation
        • P(f);
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT,P_PINR(C),XB(F)::QAR2(A)
        • B(a);XR(C)::QAR1(A)
        • S(h);XP(E)::R(C)
        • P(d);SBLOCK,XB(F)::R(C)
        • P(f);XP(E)::QAR1(A)
        • B(a);::QAR1(A)
        • S(h);::QAR1(A)
        • S(i);::QAR1(A)
        • P(g);::QAR1(A)
      • Refutation
        • S(i);
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT,P_PINR(C)::QAR2(A)
        • S(h);XP(E)::QAR1(A)
        • S(i);::QAR1(A)
        • S(h);::QAR1(A)
      • Refutation
        • P(g);XB(F)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(c);P-FLIGHT,P_PINR(C),XQ(A)
  • Actual
    • B(F);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);P-FLIGHT,P_PINR(C),XB(F)::QAR2(A)
      • B(a);XR(C)::QAR1(A)
      • S(h);XP(E)::QAR1(A)
      • P(e);SBLOCK,XB(F)::R(C)
      • S(i);::QAR1(A)
      • S(h);::R(C)
      • S(i);::R(C)
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